3/16 ; 1/4 glass New 5" long Brushed Nickel Sharp Looking handle with a metal! Each handle comes in with gasket! This handle is not Designed for slider / bypass shower! 

If using on 1/4(6mm) glass, you will have to use silicon. Gasket is only for 3/16 (5mm) glass. When putting handle on spray gasket with glass cleaner and use rubber mallet to pound the handle on. If you have any questions send me a massage. Thank You!!!