KIT-TWO 30 CM Balloon Polyurethane Wheels with 22 cm Polypropylene Hub, 36" Aluminum 3/4" solid axle, two 3/4" stainless steel Washers and two lynch pins-KIT Part Number: BKIT002 Dimensions: 11.8” x 7” Each Tire Width at Bearing: 7.3” Ideal PSI: 2.5 lbs. PSI Range: 2-4 lbs. Weight: 2.9 lbs. Load Capacity: 121 lbs/each tire Axle: 3/4" Aluminum 36" long Round Lynch Pins: (2) 3/4" Stainless steel Washers