The connecting part has a glossy black plated finish, giving it a luxurious feel. This is an item for sale due to the main unit failing on the third day after purchase. For anyone looking for one. [Size] Total length: approx. 219mm (when extended: max. 250mm), wrist circumference: approx. 16cm - 21cm (for children, adults, men and women), belt width: approx. 14mm, belt thickness: approx. 3mm [Weight] Approx. 7g [Material] Belt: Nylon / Adapter: Metal / Resin [Features] This is a new type of replacement band for the Xiaomi Smart Band 8. It uses Velcro for stepless size adjustment. It's less likely to get stuffy than the conventional TPU belt, making it comfortable in the summer ◎ Nylon belt is resistant to dirt ◎ The belt pins can be attached and detached without tools ◎ [Compatible models] Xiaomi Smart Band 8 only (Xiaomi Mi Smart Band 8 only)