Available in 100 and 125 GR - Standard 8/32 Threads Designed for use with the Hyde, Jekyll, Whitetail Fury, and Turkey Wrecker. For crossbow applications, consider using practice blades. Practice Heads not recommended for the Dangerous Game or Crossbow. Practice heads are specific to practice use, and blade packs are not compatible with them. Additionally, they are not legal for big game hunting. Broadhead Case Not Included