This is a helmet for soft baseball. I have multiple helmets for sale, and bulk purchases are welcome. Sizes range from O to M, and include youth sizes (both ears). Youth sizes can also be used by adults. Our team has used them for many years, and most members used them without realizing they were youth sizes, lol. They can be used in official games. Please note that the stickers are left on as they are. For bulk purchases of 5 or more, we offer a 10% discount per helmet. The condition varies for each helmet, so please check carefully and let me know the number (written on the helmet itself) of the one you wish to purchase. Soft baseball, helmet, black, one ear, both ears, bulk purchase OK