Rockwell Sliding Shower Door Finger Pull Knob in Brushed Nickel Finish,1-1/4 inch diameter, solid brass construction works on bipass shower doors This Sliding Shower Door Finger Pull Knob in Brushed Nickel Finish is one of the most Durable door hardware pieces you can buy. It is made to last and manufactured at our high tech ISO 9000 certified facility Great Finish & Construction on this Sliding Shower Door Finger Pull Knob in Brushed Nickel Finish is one of the most Durable door hardware pieces you can buy. It is made to last and manufactured at our high tech ISO 9000 certified facility Improve the look and function of your home or office with our commercial grade quality door and window hardware We are confident we have the best value door hardware, sliding door hardware, external and internal door hardware on the market Glass Door Hole specifications: 1/2" diameter