Durable Underwater Thruster Bait Tug Remote Positive Description: Underwater propeller: ship model propeller, using waterproof brushless motor High-quality materials: imported material blades, the maximum diving depth is 2000 meters Efficient: With 3-blade nylon propeller, excellent performance and high efficiency Rust protection: using copper sleeve bearing, the bearing will not rust, full power, high speed and corrosion resistance Suitable for: toys, RC decoys, RC boats, nest boats, net boats, RC submarines, micro submarines Specification: Black colour Material: Nylon Size: Approx. Diameter: Approx. 69mm/2.71 inch Total length: approx. 82mm / 3.23 inch Propeller Length: Approx. 60mm / 2.36 inch The package includes: Positive: 1 piece forward propeller Positive Negative: 1 piece forward propeller 1 piece inverted propeller