EasyBow - Beautiful bows and flowers created to be worn on your dog’s collar. Each bow is very simple to use, and has very elegant, chic designs. Elastic strap with Velcro is used for adjusting and fastening. Simply place your bow on the collar, fold one end of the Velcro over the collar, and fasten with the other end of Velcro attachment. Simple attachment and removal allows for mixing and matching different styles and trends. Size Small - measured about 3" (7.5cm) long, Large - measured about 4" (10cm) long.