Black Nylon Glass Cleaning or Polishing Round Brush (YY-297) 1. The total length for brush is 90mm 2. The outer diameter for brush is 125mm 3. The outer diameter for plastic part is 85mm 4. The hole diameter is 50mm 5. Nylon material for wire 6. Function: Glass cleaning brush 7.payment term:T/T,western union,cash 8.trade term:FOB,CFI,CIF,EXW factory