32mm hose plastic click ring for hose bent tubes or hose cuffs.

They secure the white threaded  in place, with two dimples. Simply depress in the dimples with a screwdriver. They are also on cheaper barrel such as the original VAX.

In the second picture, it's at the bottom of the photo. Same in the third picture. The white hulls and bent tube are NOT included. They are for illustration only, find them in related parts below.

At the moment standard postage within Australia, is capped at a maximum of $30, so maximise the saving on postage and buy something in related items below!