Set of 2 Foam-Filled No-Flat Tires 4.10X3.5-4 with Bearings — Fits 72310001 / 15010 for Velke 2-Wheel System X2

Replacement pair of solid polyurethane, foam-filled no-flat tires sized 4.10X3.5-4, designed for Velke 2 Wheel System X2. Each tire comes with bearings and an inside rim 1" roller bearing. Package contents and specs: Quantity: 2; Tire size: 4.10X3.5-4; Material: Solid polyurethane foam (no-flat); Inside rim: 1" roller bearing; Bearing retainers: 2 pieces, 1" I.D.; Spanner: 1 piece, 1" O.D. Compatible with Velke 2 Wheel X2 models and fits part numbers 72310001 and 15010.