This Reliabilt Bola entry knob featuring a satin stainless steel finish is easy to install with just a screwdriver and fits both right-handed and left-handed doors. It is backed by a limited lifetime mechanical and finish warranty. ANSI grade 3 standard. 2.38-inch or 2.75-inch backset. 2.56-inch rose. Fits 1.38-inch to 1.75-inch door thickness. 1-inch edge bore size. 2.13-inch bore size.