3-7/8" x 0.8", 1/2" Hex BaneBots Wheel, 3-7/8" x 0.8", 1/2" Hex Mount, 30A, Black/Green $6.05 BaneBots Series 800 Wheel - 3-7/8"dia x 0.8" wide Black PP Core, Soft Green 30 Shore A TPR Tread 1/2" Hex Mount more information / order Code: T80P-393BG-HS4 BaneBots Wheel, 3-7/8" x 0.8", 1/2" Hex Mount, 40A, Black/Orange $6.05 BaneBots Series 800 Wheel - 3-7/8"dia x 0.8" wide Black PP Core, Medium Orange 40 Shore A TPR Tread 1/2" Hex Mount more information / order Code: T80P-394BO-HS4 BaneBots Wheel, 3-7/8" x 0.8", 1/2" Hex Mount, 50A, Black/Blue $6.05 BaneBots Series 800 Wheel - 3-7/8"dia x 0.8" wide Black PP Core, Harder Blue 50 Shore A TPR Tread 1/2" Hex Mount more information / order Code: T80P-395BA-HS4