Large 1/4” tapered nose plate is 13-1/2” deep, widens to 16” at rear. Beveled leading edge is easier to slide under loads. Frame and extra high 29” stair glides are 1.05” 14 gauge tubing for strength and rigidity. Wheel guards keep loads away from wheels. All frame styles feature 4 curved ribs with vertical center brace and zinc plated adjustable D-Axle. Foot Kick provides extra leverage on heavy loads when starting. Loop Handle. 8" Puncture-Proof Solid Rubber Wheels are great for rough surfaces while offering floor protection and quiet operation. The cushioned rubber tire over plastic hub is more stable and easier to roll under heavy leads 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) alternative to pneumatic wheels.