Ardex Ardipeg Self-Leveling Pins (250 Pack)2 1 2" (6. 35 cm) pin Adhesive strip holds the pin securely in place during a pour Easy to cut plastic Convenient, easy to read measurements in inches and millimeters Use a laser, transit or similar method to grid the floor Prep and prime the substrate Place and trim the pins to the appropriate height Install ARDEX Self leveling Underlayment Sturdy material returns to its original upright position if stepped on or rolled over Pins become an invisible