This is the factory replacement three piece silicone band for your Garmin Descent dive computer, including the extended length band for heavy exposure suits. It's easy to switch, and always secure. The Quickfit-26 band is compatible with the Mk3i-51, Mk2/Mk2i, Mk1 models ONLY and fits a wrist of {5.0 to 9.6 in | 128 to 244 mm} or { 5.0 to 14.2 in | 126 to 360 mm} in circumference. Available in black color only, the Quickfit-26 is NOT compatible with other Descent models.