The Pets in the Classroom Styles Adjustable Dog Collar not only allows your pup to express style but also contributes to a noble cause. Designed for comfort, this collar boasts a smooth and gentle design, ensuring your furry friend's comfort throughout wear. The snap-lock buckle makes it effortless to put on and take off. Even more special, is that a percentage of the proceeds from every Pets in the Classroom collar purchase goes directly toward supporting of teachers in enhancing students' educational and personal development through interaction with pets in their classroom.