Features: Precise 4mm flat belt restores to vintaged cassette players and auditory devices by eliminating slippage. Features anti aging rubber construction in multiple size ;Smooth rotation and noise reductions. with 4mm thickness and flat pattern for secure grip, wear resistance. Perfect as a replacement or backup tape, allowing this player to rotate better. Only the rubber belt, other attachment demonstrations in the picture not included! Specifications: Material: Rubber Color: Black Width: 4mm Size: about 40mm/1.57in in half, 50mm/1.97in in half, 55mm/2.16in in half, 60mm/23.62in in half, 70mm/2.76in in half, 75mm/2.95in in half, 80mm/3.15in in half, 85mm/3.35in in half, 90mm/ 3.54inin half, 95mm/3.74in in half, 98mm/3.68in in half, 100mm/3.94in in half Package Includes: 1PC Belt note: Please allow 0-1cm error due to manual measurement. make sure do not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.