Features: Ensures smooth and stable operating for recorder with high elasticity rubber roller belt, to prolongs device life and maintain optimaled tape playbacks. From precise ground, wear resistant synthetic rubber, this belt reducing slippage and ensuring reliabled performances over time. deal for music enthusiasts, vintaged trend followers,students, and anyone in need of portable auditory solution. Perfect for use during commutes, outdoor activity, indoor time, or as a background music companion while studying or working. Offering a versatiled solution for repairing aging belts and maintaining the smooth operating of your portable auditory equipment. Specifications: Item：Tape Recorder Belt Pulley Wheel Roller For RQ-SX Series Musical Instrument Accessories Outer diameter: about 5mm/ 0.20in Width: about 4.4mm/ 0.17in Inner diameter: about 2.2mm/0.09in Quantity： 1/5/10PCS Package Includes: 1/5/10PCS Recorder Belt Pulley Wheel Roller note: There might be a bit color distortions due to different computer resolution There might be 1-2cm size errors due to different computer resolution