Go green...Green Market! Our eco-friendly Green Market small breed collars are made with bamboo, one of the world's most renewable resources. Soft, comfortable, and lightweight, these collars have an easy to wear style. They are specially designed for puppies and small breeds that are 10 pounds and under - as a lighter, more comfortable option. Small breed collars and leads are 1/2-inch-wide with lightweight but strong buckles that are perfectly proportioned for the smallest dogs.