Over 720 squares, each is 1/4" x 1/4" with a 1/2" gap in between each square. This allows precise placement of just one square or you can just glide the adhesive across in a continues form. Our permanent adhesion is the best on the market, we guarantee it! The same formulation and strength you have come to love from our GlueGlider® Max, now in ¼” squares for the Pro! Perma Squares are 1/4" x 1/4" pressure sensitive, permanent adhesive squares, designed to allow you to apply either a single square or a continuous line. Just snap in the cartridge and glide!