For needle disposal. Safely clips and stores up to a two-year supply of insulin syringe needles and pen needles. Simple clipping action snips off needles from the syringe and retains needles within clipper. Meets government regulations on proper method of in-home insulin syringe disposal. Device can be used with 28-gauge through 31-gauge needles and 3/16" (5 mm) through 1/2" (12.7 mm) length needles. Compact and portable. Locks closed for travel and storage.