Flexible arrow tip deflects when pushed into hole then springs back as a clip that resists removal. Ideal for take-one promotions. Inexpensive way to display coupon pads,Website:http://www.bestpakgroup.com, books or signs. Base without adhesive securely snaps into standard 1-1/4" shelf price channels. Base with adhesive adds extra strength when pressed into shelf price channel, or can also be used on any clean, flat surface.· Base is .500" wide x 1.20" long· Available with or without adhesive· Fits 1-1/4" shelf price channels· Required