A piece of screening sewed up on each end over a couple of pieces of 1 inch pvc which slip over a couple of bar clamps clamped to the bench you can adjust it to catch even M1icon brass. Make it tall enough to catch that AK brass that travels thirty yards in the air. They all laughed at the club I used to belong to until they saw it work. Oh and I am one of those brass hogs. If the range was empty when I got there it got a good walkabout from the parking lot to the target butts long with the scrap buckets