Description: Better flexibility and durability than normal screwdriver bit. Removable screwdriver lid for you to store screws. Delicate appearance, compact and easy to carry. An essential pick-up for the RC enthusiast. Suitable for different kinds of RC helicopters, airplanes, cars, boats, etc. Specification: Material: Aluminum, Carbon Steel Color: Blue Size Chart: Screwdriver Length: 17.3 cm/6.81 inch Package Includes: 1 Piece 4.0mm Sleeve Screwdriver 1 Piece 5.5mm Sleeve Screwdriver 1 Piece 7.0mm Sleeve Screwdriver 1 Piece 8.5mm Sleeve Screwdriver Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm erIdeal screwdriver kit for RC helicopter models