This is our own small business, EARTHMANIA Premium Bamboo Toothbrushes. We personally oversaw the development of these brushes to make sure they were the high quality we wanted. The ultra soft, nylon bristles are densely and firmly packed for a great and gentle clean. Suitable for everyone - especially kids and people with sensitive gums. One box contains 4 brushes - that's a one year supply for one person. Love the earth. Love your smile. www.EARTHMANIA.com