ITEM NAME:Metric 18mm x 16mm x 6mm DC Device Motor Carbon Brushes Pair T3Q2 Metric 18mm x 16mm x 6mm DC Device Motor Carbon Brushes Pair T3Q2 Product Name : Motor Carbon Brush;Fitness : Generic Electric Motor Carbon Brush Size : 18 x 16 x 6mm/ 7/10" x 5/8" x 15/64"(L*W*H) Total Length(Approx) : 4.5cm/ 1.8" (When Spring Stretching) Net Weight : 13g For an electric motor or generator to function, the coils of the rotor must be connected to complete an electrical circuit. Carbon brush is a item easy to broken when it working, 2 pcs replacement carbon brush for you easy replace the spoiled one. Package Content : 2 x Motor Carbon Brush Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Carbon Brush Size : 18 x 16 x 6mm/ 7/10" x 5/8" x 15/64"(L W H). For an electric motor or generator to function, the coils of the rotor must be connected to complete an electrical circuit.