Specification Material: Stainless Steel+Plastic Color: Blue Tires Diameter: 25cm/9.84in Bracket Size: 15*8.5cm/5.91*3.35in Width of Wheel Side Section: 8cm/3.15in Rod Length: 40cm/15.75in Gross Weight: 5.1 Kg/11.24lbs Max Load: 150kg/330.7lbs Package Volume: 53*29*14cm/20.87*11.42*5.51in Installation 1. Install the Long Screws on the Concave Side. 2. Install the Four Short Screws at the Interface of the Boat and the Tire. 3. Tighten the Screw Cap. 4, Install the Ear Buckle. Package Included 2*Wheels 2*Long Screw Caps 2*Brackets 2*Square Tubes 4*Ear Buckles 8*Short Screw Caps 1*English Manual Screws for Installation Notes Please Note That the Wheel Is Not Designed to Be Towed Behind the Vehicle. It's Only Suitable for Short-distance Beach Moves, Not Hig.