A - CASE AMASRA APPLE WATCH SLILICON STRAP 42/44/45/49MM

Compatible Models: Compatible with Apple Watch Series 42/44/45/49mm.
Patented Bidirectional Connectors: Strong magnetic attachment for easy length adjustment and a secure fit.
Soft UV-Treated FKM Silicone: Provides a long-lasting smooth finish.
Waterproof and Washable: Durable and easy to clean.

Material: FKM polymer is made from vinylidene monomers (VDF), with a high concentration of fluorine and carbon-based monomers, often referred to as fluorine rubber or fluoro-rubber.
Resistance: FKM Silicone offers excellent resistance to chemicals, oils, and heat. This strap is unique compared to other silicone straps.
Manufacturing: We have created a high-performance elastomer commonly used in applications where traditional rubber materials cannot withstand extreme conditions. FKM rubber is a premium product.