This is a UNIVERSAL replacement PVA sponge mop head, you've come to the right place. Don't confuse The Super PVA mop refill with others you see in stores or online. This is the original! We offer 100% pure PVA sponge mop replacement heads which can be used on any standard PVA mop including: The Super, Magical, Sweep 'N Mop, Quickee, and Wilen 11" PVA mops. The PVA ribbed sponge replacement head is mounted to a black anodized gripper. Simply attach with four screws from your existing mop, purchase standard #10 - 1/2" sheet metal screws. MOUNTING HOLE PLACEMENT The black metal holder is 10.5" long. There are the 4 holes for mounting screws, The outside screw holes are: 2 7/8" from the ends of the black bar, and the inside 2 screw holes are 3.5 inches from the ends. That means the spacing between the hole pairs is about 5/8 inches. ----PLEASE NOTE!! MOP HEADS ONLY , NO SCREWS INCLUDED. WILL NOT FIT EZ MOP---