Knock chute; 7 1/16 in (L) x 6 5/8 in (W) top flange dimensions; 5 15/16 in (L) x 5 1/2 in (W) x 4 5/16 in (H) box dimensions; Black 304 stainless steel construction; Durable construction allows for aggressive knocking, ensuring grounds make it into waste bins without fear of breaking the box; Welded knock bar ensures the bar stays put, while also reinforcing the box, increasing durability further