UDI U839 RC Quadcopter Spare Part U839-06 Protection Cover Model: U839-06. Material: Plastic Suitable for: U839. Color: Black Dimensions: (3.43 x 3.43 x 0.39)" / (8.7 x 8.7 x 1)cm (L x W x H) Weight: 0.07oz / 2g Package Includes 1 x Protection Cover.