ITEM NAME:Acrylic Case Box Enclosure Shell For Bbc Micro-Bit Kits,Black + transparent E7V7 Acrylic Case Box Enclosure Shell For Bbc Micro-Bit Kits,Black + transparent E7V7 In order to prevent the acrylic board from scratched , we stick a layer of protective film ( without glue mark ) on it , please tear it up gentle before you the case. leave all interface to access the main board. This case is quite easy to install . There is a layer of protective film sticker on the surface of acrylic , please tear it up gently before you use it . Weight : 17g approx colour:Black + transparent Material : Acrylic Package Contents: 1*Acrylic Case for BBC Micro-Bit