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 7mm & 9mm Autoclips are perfect for small animals, while the 18mm Autoclips are great for larger animals.