Top quality Casa air bellow and chrome K & N style power air filter. These are connected using a piece of pipe (supplied in kit) to connect the two together to stop the bellow folding on itself. Comes with 3x jubilee style clip, this includes the one to fit to the carburettor. 
 
This is for the 18mm standard 125cc carburettors from the series 1, 2 & 3 Li and specials Etc, please check which carb you have been buying. 
 
Please note: Does NOT come with all the bottom parts of the air bellow, these can be bought seperately.