These are the ulitmate accessory to make pooch look her best, while protecting her eyes. These sunnies have 100% UV block, are shatterproof, have comfy nose pieces and 3 adjustable head straps. They even feature a diamante heart in the bottom corner. MOST DOG'S GET USED TO WEARING DOGGLES QUICKLY. START OFF WITH PUTTING THEM ON FOR 10 MINUTES AT A TIME AND KEEP THEM ON LONGER AS THEY GET USED TO THEM.