Material: Silicone material Color: 6 colors available Function: Protects the spool from scratches Net Weight: 3.4g (small size), 4.4g (large size) Advantages of the material: Does not harden in cold weather or soften in hot weather; features high resilience and stable physical properties
Good fit:scratch-resistant, dust and stain-proof, protects the spool from easy scratching.