Instruction
1.Open the red buckle
2.Insert the rubber tail into the black clamp
3.Lock card buckle,adjust the tube and squeeze glue
4. For thin plastic tube, please insert mental gasket into black fixture
5.Tighten the 2 screws shown with a screwdriver to fix the glue tail
6. (1) For thick aluminum tube tail, skip step 4 and 5, use directly. (2) Afters queeze glu, hold the metal buckle, pull back the lever and refill.