This part came off of a curved glass shower door with the name King Glass. Is this a part that you have? The roller is 15/16" diameter and center to center of rollers is 1 3/8". Roller thickness is about 7/32".
Thank you
Richard
Tom from SWISCO responded:
December 6, 2016
Hello Richard and thank you for reaching out to us. Please take a look at product 10-058. We believe our shower door roller will work for your curved doors. Let us know your thoughts!