Brand new with high quality Material: Carbon & copper Model:J465(Metallic graphite) Resistivity: 0.15-1.35 · mm²/m Density: 4.1-4.5g/cm ³ Rockwell hardness: 50-90HR10/980N Rated current density: 20A/cm² Color: Dark Grey & Gold Tone Size: approx.11*10*20mm Applicable range: 12V 24V 36V 48V 60V low voltage high current starting motor, water pump motor and some auxiliary motors Scope of application: Solar deep well pump DC motor Features:Good wear resistance, low noise and spark Quantity: 4pcs carbon brushes Package Include: 4pcs Carbon Brushes(as your choose) Notice: 1.1cm=10mm=0.39inch. 2.Please allow 1-2cm error due to manual measurement and make sure you do not mind before ordering. 3.Please understand that colors may exist chromatic aberration as the different placement of pictures.