Feature: 1. Made of high-quality materials, small and light, easy to carry, 2. It can effectively improve the strength of the aircraft arm and reduce the probability of arm damage, 3. Long service life, easy to install, 4. Double-head screwdriver model: 2.0, 2.5. Description: Material: PC Applicable models: for FPV Drone Color: Black Net weight: 66.6g Package weight: 72g Product size: 18*3.5*2.6cm Package size: 26**15cm Packing list: 1set Arm reinforcement 2pcs Screw 1pcs Double-head screwdriver Note: 1.Does not include the FPV Drone, 2.Transition: 1cm=10mm=0.39inch, 3.Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering, 4.Due to the difference between different monitors, the picture may not reflect the actual color of the item,please make sure you do not mind before ordering, Thank you! Note: When disassembling the arm reinforcements, the arms of the aircraft will have cracks, so those who mind should be cautious to buy!