Product details:

Tilt-back truck stabilizes the load on 4 wheels for less effort when transporting cylinders. Wheel measures 8 inches diameter by 2-1/2 inches width. Rubber casters measures 3 inches by 1-1/4 inches. 800 pounds capacity. Solid rubber wheels features good load capacity, great for rough floor surfaces, puncture-proof, floor protection and quiet operation. Cushioned rubber tire over plastic hub that is more stable and easier to roll under heavy loads than pneumatic wheels. Sometimes referred to as a semi-pneumatic tire, these wheels are a rugged, maintenance-free (no air pressure to fill and maintain) and are an alternative to pneumatic wheels.