• Pneumatic wheels deliver a cushioned ride for delicate instruments and breakable items. The tube-type, pressurized tire combines shock absorption with quiet operation.
• Semi-Pneumatic wheels are zero-pressure and puncture-proof for better shock absorption. Economical, commonly used as a hand truck wheel.
• Duraflex wheels feature a solid cushion tire made from a special blend of granular rubber and chemical accelerators, cured under tremendous pressure for superior "bounce", and impact and puncture resistance. Tires are mounted on rugged polypropylene centers.
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