$60 each This model has 12.7 mm (1/2″) bushing with a Twist Lock Knob. Wheeleez™ Polyurethane Beach Balloon Wheels are specifically designed to navigate challenging terrains like soft sand, mud, gravel, grass and rock. They are also great on hard surface terrains like streets and sidewalks. Moving heavy, awkward loads is easy with our wheels, because Wheeleez™ Wheels Go-Anywhere!