Hand Tube Brush, Fill Material Brass, Brush Dia. 1/4", Wire Dia. 0.003", Shank Size 3/32", Trim Length 1-1/2", Overall Length 7", Max. RPM 2000, For Use With Hand Held Applications, Includes (1) 1/4" Hand Tube Brush, 0.003 Brass, 1-1/2" B.L.Features:Trim Length: 1-1/2" Overall Length: 7" Max. RPM: 2000 For Use With: Hand Held Applications Includes: (1) 1/4" Hand Tube Brush, 0.003 Brass, 1-1/2" 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