The Gina K. Designs for Therm O Web Adhesive Dot Runner makes crafting a snap. Designed for your convenience, this runner lets you create a permanent, acid-free bond on all of your paper craft projects including card making, scrapbooking, school projects and more. The Adhesive Dot Runner is refillable with an easy-to-change, snap-in cartridge (refill not included.) This 3.875x5.75 inch package contains one adhesive dot runner with 30 feet of .31 inch permanent, acid free adhesive dot tape. Acid free.