Features:_x000D_1. Application: Special designed front bumper for DJI RoboMaster S1 educational robot._x000D_2. Main function: Provide effective protecting for your DJI RoboMaster S1 Robot._x000D_3. Durable: All aluminum alloy CNC fine carving, anodizing, micro-carving and other processes, the thickness of up to 12mm/0.47inch._x000D_4. Anti-collision: It still has excellent anti-collision performance without affecting the opening and closing of the back cover and the removal of the battery. Effective protecting for RoboMaster S1 robot._x000D_Description:_x000D_Material: Aluminum alloy_x000D_Size: As shown_x000D_Package: Style 1: 1 x front bumper, 2 x aluminum columns, 8 x screw, 1 x screwdriver, 2 x crash pad_x000D_Style 2: 1 x rear bumper,3 x screw, 1 x screwdriver, 2 x crash padPackage List:_x000D_Choice 1:_x000D_1 x Front Bumper_x000D_2 x Aluminum Columns_x000D_8 x Screw_x000D_1 x Screwdriver_x000D_2 x Crash Pad_x000D_Choice 2:_x000D_1 x Rear Bumper_x000D_3 x Screw_x000D_1 x Screwdriver_x000D_2 x Crash Pad