Size is approx. 23.5 by 3.2 by 1.0cmAdditional product info: It is a replacement band made of nylon. Since it uses hook-and-loop fasteners, you can wear it at your preferred length. It comes with a silicone Pokeball charm and a PU design tag! This product is compatible with Apple Watch [SE (2nd Generation)/SE] [Series 10/9/8/7/6/5/4/3/2/1] (42/41/40/38mm). It cannot be used with other models. This product has a front and a back. Please check the back of the package carefully before attaching it. The image shows it attached to an Apple Watch. The product does not include an Apple Watch.