Tourgo Sleeve block --Truss Accessories

Sleeve block are used to connect beams and stands of truss system .The Sleeve block
 made with wheels inside ,when you push the hoist,the Sleeve block will drive the beams
 up and down along the stand .

 Below are the pictures to show you how to use it :

1,Connect one side with the stand ,the other side connect with the beams :

2,Push the hoist ,the sleeve block will lift the beams up :