... more durable, light weight, high strength, low distortion, anti-corrosion, water-proof, fadeless, ect.Professional designers: the world's ... and fast: forward, backward, turn sensitive, fast.5: rust and corrosion: the gear box is sealed, all components are handled by ... the rust and corrosion in fresh and sea water can be run, no rust, corrosion-resistant.6: Light disassembly: ...