Made of high quality metal material, it is eco-friendly, solid and durable for long term use. Suitable for RC model car and RC model boat. The universal joint can change the transmission direction at any angle. With perfect workmanship and precise size, the joint is easy and convenient to install and remove.

• Easy to install and uninstall.
• Material: HSS
• High quality metal universal joint coupling for RC model car or boat.
• Full metal strong material, delicate CNC cut with outstanding appearance, high precision fine workmanship.
• Shaft hole Diamiter: 3mm to5mm & 5mm to 5mm
• 1pcs