Nintendo 3DS Crystal Case Full accessibility to the touch screen, ports, cameras and all the buttons. Transparent and protective. Will not scratch the 3DS finish. Protects from bumps and dings. Comfortable to play with. Instructions: 1) Snap the top of the case onto the 3DS. 2) Snap the bottom of the case onto the 3DS. 3) Line up the top and bottom case in the back, and snap the side tabs into place.