Wheaton E-Z Crimpers ™ feature a newly designed cushioned ergonomic handle that aids in reducing hand fatigue and adds a high degree of comfort for the user. Additionally, each crimper size is now labeled for quick identification. Other features include polished crimping jaws for consistent sealing, a short handle and redesigned spring assembly that further aids in reducing hand fatigue. They also work with the Wheaton Crimpmaster Crimping Station (V2880). An adjustable stop allows you to determine the tightness of the seal while maintaining consistent crimping.