1. 316 Stainless Steel Material: Made of 316 stainless steel that works reliably in both saltwater and freshwater environments. The material guarantees long-lasting performance in marine conditions.
2. CNC manufacturing: Fine machining by CNC technology with 80mm diameter, 1.2mm pitch and four Vane/Wing design. The careful design provides good dynamic balance for smooth operation and longer life.
3. 5mm Bore Diameter: Has a 5mm bore diameter to fit traditional crankshaft sizes. Compatibility ensures easy installation on multiple systems.
4. Optimized Four Vane/Wing Design: The four vane/wing configuration offers exceptional thrust efficiency and better acceleration than traditional three vane/wing designs.
5. Wide range of applications: Suitable for installation on RC model boats, sea fishing boats, etc. The design meets the needs of both hobbyists and professional marine applications.

Technical specifications:
Item type: for RC boat
Material: stainless steel
Diameter: 80mm/3.15in
Hole diameter size: 5mm/0.20 inch
Wing/wing center: 18.5mm/0.73in
Pitch: 1.2mm/0.05in

The package includes:
1 for RC boat