5Pcs Brass Hex Motor Drive Shaft Joint 2/3.17/3/4/5/6/7/8mm Transmission Coupling Coupler Connector For RC Model DIY

High-concerned chemical : None Standard or Nonstandard : Standard Flexible or Rigid : Flexible Model Number : 2/3.17/3/4/5/6/7/8mm Material : Brass Structure : Metal Bellows Origin : Mainland China Certification : NONE