Brand N/A Model internal diameter 0.8cmexternal diameter 2.4cm length 6.5cm Quantity 4 Piece(s)/pack Color Red Black Material rubber Compatible device 0.8cm diameter machine horse Functions protection shock-proof Other Feature net weight: 4 total 21g; This kind of proctetion rubber boot is made from high quality rubber. It has a strong toughness and the shock-proof dffect is excellent. The rubber is suitable for multirotor FPV holder. It is really a good choice for your machine. Keywords Multirotor Frame Protective Boot Fly Frame Protection rubber for FPV Holder Damping Packing List 4 x Rubber protection boots