Strong enough to hold a door equipped with hydraulic door closer. Very simple installation with included template.
The white square portion attaches at the bottom of the door. Stepping on the brown footpad extends the round, rubber tipped, plunger toward the floor.
• The gap between door and floor must be between 22mm (7/8") and 32mm (1-1/4")
• Extends horizontally approximately 40mm (9/32") from door surface