Compatible with antlers or sheds from any deer species (Whitetail, Blacktail, Coues, or Mulies), the NEW Skull Master by Illusion is the #1 DIY Euro Mounting system on the market today! Product Details Universal Skull Master kit includes 3 skull caps: (1) SMALL = (1) MEDIUM = 3" to 5" Antler Base (1) LARGE = >5" Antler Base Classic white bone color Hardware and Instructions included