uxcell 4PCS Black Toothbrush Type Conductive Ground ESD Anti Static Brush Kit Product Name : Anti Static Brush;Imitated Hair Length : Small : 16mm/0.63"Medium: 16mm/0.63"Large: 18mm/0.71"Larger: 22mm/0.87" Total Size : Small : 170 x 10 x 24mm/6.7" x 0.39" x 0.94"(L*W*T)Medium: 170 x 10 x 24mm/6.7" x 0.39" x 0.94"(L*W*T)Large: 170 x 18 x 28mm/6.7" x 0.71" x 1.1"(L*W*T)Larger: 225 x 20 x 35mm/8.8" x 0.79" x 1.4"(L*W*T);Material : Plastic, Conductive Fibers Color : Black Weight : 117g Package Content : 4 x Anti Static Brush