For Comfortable Testing. Single Use Only. Comfort Tip. Easy to Use Compatible with most lancing devices, regardless of brand name: One Touch Lancing Device Ultra Soft Penlet Plus; Freestyle Lite; Gentle Draw; Walgreens; Microlet; Prestige Smart System MediSense, Soft Touch, Autolet, Qwik-let, Vaculance; and many more. Not compatible with Accu-Check Softclix.