Rubber Belt Cassette Radio Cassette Recorder Motor Audio Equipment O-ring Set Video Deck CD Deck Walkman Disc Player etc. Repair, Maintenance, Replacement, Approximately 30 pieces included These are rubber belts for repairing and replacing radio cassette recorders, video decks, CD decks, recorders, and audio equipment. Rubber parts that have cracked or hardened need to be replaced. The size of the rubber is unknown unless you disassemble the radio cassette recorder. However, it's difficult to purchase by specifying the size. This is useful in such cases. You can try various sizes while repairing. Since various sizes are included, you can try multiple sizes. (Some sizes may be the same.) Diameter (folded diameter): Approximately 40 to 130mm Brand new, unused