Single Spiral Tube Brush, Fill Material Carbon Steel, Brush Dia. 1", Wire Dia. 0.008", Shank Size 1/4", Trim Length 1", Overall Length 3-1/2", For Use With Power Drills, Flexible Shaft Tools, Includes (1) 1" Power Tube Brush, 0.008, 1" B.L.Features:Trim Length: 1" Overall Length: 3-1/2" For Use With: Power Drills, Flexible Shaft Tools Includes: (1) 1" Power Tube Brush, 0.008, 1" B.L. WARNING:California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. California proposition 65 warning