This is Universal Swivel Castor Wheel, which can be in many DIY projects, can be used with any Robotics/electronics projects. Generally, castors operate well on smooth and flat surfaces. The Castor Wheel is easy to roll. Wheels give an Excellent Grip on the Surface. Longer life & outstanding aesthetics. Super heavy design & construction. Package Includes : 1 x Universal Swivel Castor Wheel
