Uxcell Replacement Carbide Wheel U Type Glass Cutter Head Blade, Black Product Name: U Type Cutter Head; Material: Metal Wheel Size: 4 x 1mm/0.16'' x 0.04''(D*T) Total Size: 19 x 8 x 5mm/0.7'' x 0.3'' x 0.2''(L*W*H) U Open Width: 4mm/0.16''; Color: Black Net Weight: 5g; Package Content: 1 x U Type Cutter Head