1. Use for : 3 Model Band or B , 2 2. Color : Transparent 3. Weight : 70g Material: Acrylic and Metal Introduction : 1. This case is made up of 6 piece panels,each panel is covered by protective film sticker,please tear it up before installation. 2. Acrylic is beatiful but it is belong to fragile material , please install the case carefully and gently. There is a layer of proctective sticker film on the surface if acrylic , please tear it up before use it . 3. Acrylic can reduce the blocking of WiFi signal. 4. There is one hole for CPU cooling fan on the top , one hole for heat sink pad in the bottom , both for the better heat dissipation , which extend the using life of . Note: please tear the protective film up before use it.And please be carefully when you install it because the acrylic is fragile. Package Contents: 1 x Acrylic Case 1 x Cooling Fan ( not include board ) 1 set x screws and nuts 1 set x Aluminum heat sink Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.