Fiskars StaySharp Max Grass Clippings Catcher, StaySharp Reel Lawn Mower Attachment

Works great. This bag has clips that push up against the orange guard on your mower to lock it in place. You tighten them with wing nuts. It does not bounce nor fall off the mower when hitting bumps like some say. I will say with the locking nuts in place it does make you loosen the wing nuts each time you want to remove the bag to empty. It's tedious. The locking nuts are not required but do help the bad stay securely in place. Either way this set up works just great. No gas, no oil, no winter storage. I'll never go back to a regular mower again.

Contrary to some complaints I've had no problem with grass catcher falling off good results reel mowers do a superior job that's why golf courses use them exclusively