The ProTek RC 5x7mm Clutch Bell Shim is a high-quality product made of steel with a thickness of 0.1mm. Manufactured in China, it is designed to provide precise and reliable clutch performance in RC model vehicles. The product comes in a set of ten, ensuring that users have an ample supply for their projects. With its durable materials and competitive pricing, the ProTek RC Clutch Bell Shim is a popular choice for hobbyists and enthusiasts looking to upgrade their RC vehicles.