Product Name: Trolley Wheel Hole depth: 3.8 cm / 1.5 inch Hole inner diameter: 0.7 cm / 0.3 inch Wheel size: 15.8 x 3.4 cm / 6.2 inch x 1.3 inch (D x T) Material: Plastic, foam; Color: black and white; Weight: 384 g 4 pieces Shopping, with black plastic suns form a central core and a white diamond embossed foam. Replaceable cartwheel for attachment to the cart, handcart station, travel luggage and prams bicycle. Easy and convenient for installation, durable and practical wagon wheel, provides comfort for goods and luggage. Package Content 4 x cartwheels Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.