An authentic Casio watch strap, bought directly from Casio UK, supplied in factory packaging. This strap is designed to fit the following Casio watches: G-100-9CD G-2300F-4D G-2310R-1D GW-2310-1D GW-2310FB-1D GW-2310FB-1V G-100-1BD G-100-1BVD G-101-1AVD G-101-1AVSV The strap is made from black resin with a white metal buckle.