Construction: Made up of high elastic quality bracket materials, exquisite workmanship, strong, sturdy, durable, and not easy to deform for the long life service. Secure Connection: Simply slide cups over the top sink of the water intake slots, & connect your garden hose to the quick-connect fitting, and idle-speed adjustment of starting motors, convenient for cleaning pollutants in the motor system, and keeps the engine clean for peak performance. Functional: It is an effective method to flush the engine with fresh water to remove salt, sand, and silt to prevent corrosion, which is very practical. Dimensions: Crew Type Stainless Steel Drain Plug for Boats - Fits 5/8 Inches Hose. Package Includes 1 pcs of Marine City Universal Professional Boat Motor Durable Water Flusher Large Rectangular Ear Muffs Cap Flush Away Sand Salt.