C-121 (approx 60:30 minutes per side) in transparent 5-screw shell with yellow leader, tabs out, loaded with vintage BASF ferro music grade audio tape
Here are some surplus poly boxes
These are crystal clear poly boxes for audio cassettes.
Sextuple (6 disc) Jewel Box.
Quad Jewel Box. Current stock has black trays pre-assembled. View wholesale pricing...
C-10(10:50 per side) Transparent White , Transparent leader tape, loaded with hifi music grade.
C-27(13:30 per side)Transparent White, frosted leader tape, loaded with hifi music grade.
C-28(14:00 per side) Transparent Red, frosted yellow leader tape, loaded with hifi music grade.
C-31(15:30 per side)Green TInt ,tabs out, transparent leader tape, loaded with hifi RTM music grade.
Very rare style! Butterscotch brick cassettes loaded to 51 minutes, 25:30 per side with vintage (pre-2018) Super Ferro normal bias tape. Tabs out, red leader.
C-25 music-grade tape in a black cassette TONRBLACKSW
C-55 (27:55 per side) music-grade tape in a yellow tinted shell TONRREDTRANS
C-87 (43:45 per side) music-grade tape in a brown sonic-welded shell TONRBROWNSW
C-64 (32:15 per side) music-grade tape in a brown sonic-welded shell TONRBABYBLUESW
C-30 (15:16 per side) music-grade tape in a two-tone red and white sonic-welded shell TONRREDWHITESW
50 minutes (25 per side) of super ferro audio tape in a red transparent sonic (no screws) cassette shell TONRREDTRANSSONIC
C-60 (30:02 minutes per side) in a classic clear sonic (no screw) shell with graphite liners for smooth running, loaded with vintage (pre-2018) Hi-Fi Music Grade audio tape
C-28 (13:59 minutes per side) in a classic clear 5-screw shell with graphite liners for smooth running, loaded with vintage TDK SA High Bias Music Grade audio tape. This is a Type 1 shell so you need a bias switch on your cassette deck.
C-42 (21 minutes per side) in a matte white sonic shell with red leader, loaded with vintage (pre-2018) super ferro music grade audio tape
C-102 (51:06 per side) in a classic white 5-screw shell, tabs out, loaded with vintage (pre-2018) super ferro music grade audio tape
C-65 (32:36 minutes per side) in a matte white sonic shell with clear leader, tabs out, loaded with vintage (pre-2018) super ferro music grade audio tape
C-31 (15:41 minutes per side) in a classic style green 5-screw shell with yellow leader, tabs out, loaded with vintage (pre-2018) super ferro music grade audio tape
C-66 (33:22 minutes per side) in a gold tabs out sonic shell with clear leader, tabs out, loaded with super ferro music grade audio tape
C-43 (21:50 per side) in a classic yellow tabs out sonic weld shell withblue leader, loaded with super ferro music grade audio tape.