vidaXL Sack Truck Wheels 2 pcs Rubber 3.00-4These hand truck spare wheels are ideal for heavy duty use when moving loads with your sack trucks, hand trucks, trolleys, carts, dollies, wheelbarrows, etc., even on uneven grounds. The pneumatic tyres are made of durable, abrasion resistant rubber and have a special tread design that provides added grip at higher speeds. The wheel rims are made of sturdy plastic. The spare trolley wheels have a universal size and can be easily installed to your sack