The AutoClip applicator works similarly to a staple gun, in its rapid application of the AutoClips. The applicator holds 20 AutoClips, which are held firm and ready by beryllium-copper springs. The AutoClips have maximum closure with minimal trauma. The clips are easily removed with the Autoclip Remover. The 9mm Autoclips are perfect for small animals, while the 18mm Autoclips are great for larger animals.