Suitable for 20mm to 20mm tubes connecting. Suitable for tripod connection of the agriculture landing skid and other T coonection method. 
The material is Aluminum Alloy. 

Main Features:
1. Double ear fixing, the accuracy of carbon tube is not high, easy to  install, strong enough;
2, Fixed by screws, no need for rivets, easy to install and maintain;
3, Built-in tapping, no nut, easy to install;
4, Thickening, precision machining, high precision