Ultra strong, permanent, double-sided adhesive. This clear line of adhesive is immediately tacky and perfect for use on mixed media and paper construction such as boxes, books and other 3D projects. Great for cards and scrapbook pages too!Refill with the E-Z Runner® Ultra Refill or any of the E-Z Runner® Refills.•42ft of .03in wide transparent permanent adhesive•Color coordinated refills for each adhesive type•Embellish to Wear Your Adhesive on the Outside•Economical, value priced refills are easy to change, easy to use, and easy to dispense!•Environmentally friendly with recyclable refill cartridges.To Refill:Remove clear protective cap, separate casing by pushing thumbs into tab at bottom. Lift off the top, remove old refill, position new refill, then align casing and gently push closed. Replace clear protective cap when not in use.