The mouth diameter:39mm/1.54";Neck degree:45 degree bent;Material:Rubber+Sponge
Fit for stroke bikes And most Chinese import 4-stroke 50cc-125cc Pit/Dirt bikes
Replacement most carburetors(PZ22,PZ25,PZ26,PZ27 etc)requiring a 39mm(1.5in)inside diameter opening
Has 2 layers of foam,a thinner outer later and a thicker inner layer.Angled connection replacement for tight fitting areas