This is a spring-loaded, 3/4 in. square glide or guide in a 3/8 in. plastic base. It mounts on the top edge of a bi-fold door that is 1 in. to 1-3/8 in. thick. To install use a hammer to lightly tap into the pre-drilled top mount hole. Used by Alliance Doors and a variety of bi-fold door manufacturers.

• • Used by Alliance doors and a variety of bi-fold door manufacturers
• • 3/8 in. diameter base
• • 3/4 in. square top guide
• • Plastic base and glide
• • Push-in design
• • No mounting hardware is required