Therm O Web Foam Squares are an acid and PVC free, double-sided adhesive foam squares to create and add dimension to all of your crafting projects. Foam Squares are pre-cut and are 1/8" thick which are on a kiss-cut liner for easy removal. Great for adding lift to your scrapbook pages, cards and so much more • Therm O Web item # 3685 • 176 Self-Adhesive Squares per package (Black) • 1/4" x 1/8" thick • Also, available White (TW-3683) • Min. Order Qty. Multiples of 4.