This water jet engine combines plastic and metal components to provide a durable, lightweight propulsion solution for compact installations. Sold as a single set, it measures 150 mm in length to fit space constrained applications while delivering reliable water jet performance in compatible systems. Key benefits - Dual-material construction for a balance of strength and light weight - Compact 150 mm length eases integration in small boats, model craft, or DIY projects - Ready-to-install as a replacement unit, supplied as 1 set - Clear material and size specification helps with quick part matching and planning Specifications - Material: plastic and metal - Quantity: 1 set - Water jet engine length: 150 mm Practical applications - Replacement part for small RC boats or water toys that require a 150 mm water jet propulsion unit - Educational demonstrations or maker space projects to illustrate water propulsion concepts - Spare component for hobbyist water propulsion projects that specify a 150 mm engine length