Made exclusively for use with the 38mm, 40mm and 41mm Apple Watch, this black silicone rubber strap features the Coach Signature and secures with stainless steel hardware. Suitable For Your Apple Watch: Made exclusively for use with the 38mm, 40mm, and 41mm Apple Watch. Quality Materials: Black silicone rubber strap features the Coach Signature and secures with stainless steel hardware. Locking Feature: Tongue buckle is an adjustable closure made up of a pin and a series of holes in the band. Caring For Your Strap: Wipe the band clean with a non-abrasive, lint-free cloth. If necessary, lightly dampen the cloth with fresh water. With these bands, you can also use mild hypoallergenic hand soap for cleaning. Dry the band with a non-abrasive, lint-free cloth before you attach it to your Apple Watch.