[Precise Size] Standard size 4x4x15mm carbon brushes, designed to match small appliance and power tool motors for reliable replacement. [Tool Compatibility] Compatible with sewing machines, blenders, and other tools or appliances that require 4x4x15mm spring-type carbon brushes. [Function] Restores efficient electrical contact in the motor, ensuring steady power transmission, reduced sparking, and improved performance. [Durable Material] Made of carbon with excellent conductivity and wear resistance, built to withstand frequent operation. [Easy Installation] Set includes 8 carbon brushes for multiple replacements; simple to install and replace during regular maintenance., Manufacturer: Be In Your Mind