... UsageIndoor and outdoor, convenint to be used, pool,inflatable swimming pool MOQ: 10pcs(or negotiable)MaterialEngineering plasticSample/OEM Available Size1 ... , backward, turn sensitive; the perfect combination of chain and gear, drive efficiency up to 90%, the normal speed 8-12 ... hour, very entertaining. 3. Prevent rust and corrosion: Sealed gear box, all parts are handled by rust and corrosion in ...