Muffin's Halo Guide for Blind Dogs - White Angel Wings (XX-Small) Designed to fit a dogs girth of 8.5  10 (largest part of the belly / chest) 1st Place Winner of Best New Dog Products at Super zoo 2016 As seen on ABC News, The Doctors, Discovery Channel, Fox Business, The Meredith Vieira Show and CTV Muffin's Halo White Angel Wings does not hinder a dog's normal daily activity. They can eat, drink, sleep and play with it on Patented device that allows blind dogs to quickly and safely become familiar with their surroundings