Included are:

13 - 3 1/2" long 2 1/2" diameter silicone coupler  

1 - 8 3/4" long 2 1/2" diameter silicone coupler 

17 - 263 min diameter clamps 

11 - 275 min diameter clamps 

1 - 325 min diameter clamps 

Most of the couplers and clamps have been used before but are all in good condition.