These fit the records and the sleeves perfectly. The offset opening makes it easy to put the record in

An excellent product, exactly what was needed. They shipped quickly and were packaged properly.

Wasn't sure about buying these tapes, but as I wanted some custom length thought I would give them a try. Pleased with the results I have achieved. Using a high end Teac with adjustable level and bias. Shipping seemed a little high though.

I bought these to replace some aging / cracked double cassette tapes I got in the 90s. The front side of the case where the j-card is inserted is slightly smaller than the width of the old cases which causes the j-card to be bent in order to fit inside.

The other issue is there's a small white dot on the spine of the cases from the manufacturing process which looks ugly when you have the cases on display. It gets in the way of reading what's on the spine of the j-card. Here's an example: https://i.imgur.com/7SaSbf1.jpg

Other than that these are fine. Honestly, these were the only double cassette cases I could find in North America so I suppose there are no other options. I wish they could at least find a way to manufacture them without leaving a dot in the middle of the spines. Cases from the 90s didn't have this issue. And single cassette cases don't either.

English translation:
Excellent product! I fitted a Teac deck and some pretty good Sony walkmans. In my case I adjusted them with free software from Techmind.org, http://www.techmind.org/audio/index.html
With the Tuner (Frequency-counter / instrument-tuner)
I also used wow & flutter meter(WFGUI wow & flutter meter) by Alex Fred from http://www.ant-audio.co.uk/index.php?cat=post&qry=library
The latter was suggested in a Techmoan Youtube video, https://www.youtube.com/watch?v=0G2kU1e9Cpo
I used the second one, for the first one the 440hz tone of the cassette is recommended
The only inconvenience was with the shipping company that they did not make the shipment with tracking, but duplication.ca responded immediately, they told me that if the product did not arrive on a certain date they would send me another one at no cost, this was not necessary, since It arrived without any problem. Totally reliable and safe purchases in duplication.ca
Thank you very much from Mexico.
Thank you duplication.ca!!!

Original Spanish review:
Excelente producto! Ajusté un deck Teac y algunos walkman Sony muy correctos. En mi caso los ajusté con un software libre de Techmind.org, http://www.techmind.org/audio/index.html
Con el Afinador (Frequency-counter / instrument-tuner)
También usé medidor de wow & flutter(WFGUI wow & flutter meter) de Alex Fred del sitio http://www.ant-audio.co.uk/index.php?cat=post&qry=library
Este último fue sugerido en un video de Techmoan en Youtube, https://www.youtube.com/watch?v=0G2kU1e9Cpo
Yo usé el segundo, para el primero es recomendable el tono de 440 hz del cassette
El único inconveniente fue con la compañía de envío que no hicieron el envío con rastreo, pero duplication.ca respondieron de inmediato, me dijeron que si no llegaba el producto en determinada fecha ellos me enviarían otro sin costo, esto no fue necesario, ya que llegó sin más problema. Totalmente confiables y seguras las compras en duplicatión.ca
Muchas gracias desde México.
Thank you duplication.ca!!!

Looks good on the cassettes.

These cd single boxes are perfect for european cd singles with a j card. They have a frozen tray. They are packaged very well. So buy these at duplication.ca. A highly recommended seller!

They look great fit to a tee and the colors are sharp

Disappointed with the quality, they all have scratches on them. Ordered 12 of these, 9 of them had one or two noticeably bad scratches on the front. The other 3 also had scratches but weren't as noticeable from afar. I will have to buy new ones from Amazon, do not recommend...

I ordered the 5-dvd disc cases and I WAS THOROUGHLY PLEASED with the items. Not only were they well-packaged, but very sturdily built! I have ordered similar cases from others in the past, only to have them held in place by pins. Instead, I found these to be very strong, and the inner holders stay snugly in place. I will continue to be a loyal customer as more are needed. A pleasure to do business with. Thank you!

Good quality cassettes, didn't feel flimsy or cheaply made. Would definitely recommend if you're looking to buy some.

I recommend using the pdf template and printing your covers out on glossy brochure paper instead of on these. When you start to tear the J-cards at the perforations they leave these tiny residual marks on the sides of the cover. There's always a chance the the J-card can split since each panel is perforated too.

Good solid case with good positive closure clips. Also have great centre clips for expandability using the 'snap-in' expander trays that are available as a separate item!

Replaced the belts in my Awia ADF770, then used the test tape to check speed using a windows based software wow & flutter meter. New belts, a clean amd lubriation fixed flutter issues, but still seeing speed variations. Have ordered a new capstan motor - will replace and retest. The Duplication test tape arrived promptly, was well packaged and worked great - could not complete the repair without it - nice job!

Delivered very quickly; super professional.

These Recycled Chipboard Jackets are perfect. This is the second time I have order these and received them quickly. Also order the black gloss ones too a couple times and they are perfect. Need more looking to purchase some more black and red ones ….

Good calibration tape, recommended!

These guys are legit!! Employees were very helpul and friendly in making sure my order came out right. The quality of the slip cases are amazing, this is an excellent online shop.

Great poly lined paper record sleeves. After being disappointed with what I was getting from Amazon and local record shops I was happy to find these. Way better than the ones with backing on one side only.

Works great, helped me calibrate two vintage decks I just acquired….and was way way cheaper than stuff I found on other sites

It’s basic yes but what I was expecting and will work for many tape head pass cleanings on all my decks

Good and thick, they do the job I need

Perfect, they stick well, and help me customize my mix tapes

Excellent outer, i would prefer a little bit thicker, i already have the 6mm which is my favorite. If Duplication sells 4mm i would buy some for sure.

My records like others, had been in a cupboard for years without protection but now, thanks to your company they finally once again have great new sleeves for protection. Price was also very competitive.