Trim Kit for 3-handle Shower Valve, Fit Delta Washerless Shower, Chrome Finish -By Plumb USA 38801 This is not a complete shower set. This is a trim kit only. Kit includes 3 handles, 3 flanges and 3 sleeves. Chrome finish. Fit Delta 3-handle shower faucets with washerless cartridges. Cartridges shown in 3rd picture, not included in kit. The sleeve diameter: the threaded part is 1" diameter(25cm),the opening on the other side 5/8"(17cm)