The antlers are either from calf or neutered male. The antler of unneutered male is too hard for a dog to chew: might need a visit to vet specialized for dental medicine. It's mainly used to make utensils, tools and decorative objects. Small size includes a bunch of thin reindeer antlers, 150g. Medium size includes a bunch of medium size reindeer antlers, 300g. Large size includes thicker antlers either with furry skin called velvet or without. So, please send a message which one you prefer or I can also ship a mixture, 500g. By the way: do you happen to know that Santa Claus's Rudolph the Red-Nosed Reindeer should rather be called Ruby the Red-Nosed Reindeer? Males drop their antlers already in October/November and ladies keep their antlers throughout the winter/spring to protect their calves <3.