uxcell 20 Pcs 12.8mm x 7mm x 6mm Electric Carbon Motor Brushes Replacement Product Name : Carbon Brush;Material : Carbon, Metal Color : Dark Gray, Gold Tone;Each Carbon Brush Size : 12.8 x 7 x 6mm/ 0.5" x 0.27" x 0.23" (L*W*T) Each Total Length(Approx) : 35mm/ 1.4" (When Spring Stretching) Total Weight : 29g Package Content : 20 x Carbon Brushes