4 Blade Strength RC Boat Propeller Pair 60mm, Full Immersion, Solid Plastic, Fits 4mm Shaft Quick summary A matched pair of 60mm, 4 blade propellers engineered for small RC surface boats and underwater models. Constructed from strength solid plastic for reliable use in full immersion applications. Lightweight design reduces rotational inertia for responsive throttle control and easier handling. Key benefits Reliable thrust and steady handling: Fourblade geometry provides consistent push and improved lowspeed control, useful for precise maneuvering. Built for full immersion: Solid plastic construction resists water intrusion and holds shape under load, suitable for continuous underwater operation. Direct compatibility: Designed to fit a standard 4mm drive shaft for straightforward installation and replacement. Easy to install and maintain: Lightweight design and simple mounting make swap outs quick during field repairs or upgrades. Durable and practical: strength material balances durability and flexibility to withstand impacts common in model boating. Features at a glance Diameter: 60mm Blade count: 4 Material: Solid strength plastic Shaft size compatibility: 4mm Quantity: Pair (2 propellers) Application: Full immersion use for RC and underwater boats Practical use scenarios Small RC surface boat replacement: Swap these propellers into a micro or mini racing hull to restore performance after wear or damage. Underwater model craft or ROV: Use as a thruster option for hobby submarines or shallowdepth remotely operated vehicles where full immersion is required. Field and upgrades: Carry a spare pair for quick onsite replacements during competitions, club runs, or weekend testing. Installation tips Confirm your model uses a 4mm drive shaft before fitting. Inspect the shaft and coupling for burrs or play, and secure the propeller according to your model's recommended fastening method. Periodically check for chips or deformation and if blades show significant wear. What is included Two 60mm, 4 blade solid plastic propellers compatible with 4mm shafts. This propeller pair is intended for hobby RC surface boats and underwater models that require reliable, easy to install propulsion in a compact 60mm size.