Stainless Steel/Aluminum Hybrid Grass Catcher is designed to be lightweight yet strong, durable and versatile to provide years of trouble free service. Our Hybrid Grass Catcher is designed to accept a mower specific face plate, so if you ever sell your mower all you would need to do is buy a new face plate for the catcher that will fit your new machine. Multi-Mount Stainless Steel/Aluminum Catchers have an extended face plate mount which extends out from the catcher surface 7/8 ths of an inch. In the past, if you had a deck that did not stick out farther than the rear wheel, catchers would not work because they would rub the rear wheel. The extended face plate mount on the RC-MMS-4 will clear the rear wheel. The extension is 7/8” so it will work on most decks where this was a problem, but not all. Check the measurements on your specific mower.