MediCool Medi-Clip Syringe Clip and Storage Device.The Medi-Clip Syringe Clipper is designed to easily and safely snip off and dispose of your used insulin syringe and pen needle needles. This amazing device will hold up to two years of used needles which are approximately 1,500 clipped needles.- Safely holds approximately 1,500 clipped needles.- Can be used with 28G through 31G needles and 3/16" (5mm) through 1/2" (12.7mm) length needles.- Works with Insulin Syringe & Pen Needles.- Not intended for use with lancets.