Kevin Branco, owner of Main Street Gym in Hellertown, demonstrates how to use a human two-circle roller Thursday, Sept. 14, 2023, in Coopersburg. Retired math teacher Bob Swaim, who owns the ...

a lawn mower and a roller. Many professional groundskeepers use old-fashioned reel mowers to cut a stadium's grass. Attached just behind the blades of the mower is a lawn roller that bends the ...