Pre-set and ready for use.
Needle point is hidden before use and automatically retracts after use to avoid accidental needlestick injuries and cross infection. Unistik 3 Extra Safety Lancet 21G, 100/Pack Owen Mumford Unistik® 3 Extra Safety Lancet 21G, 2mm D Penetration, Single-Use Mechanism, For Medium Blood Flow Glucose Testing, Cholesterol, HGB, PT/INRUnistik® 3 safety lancets are safe, simple to use and virtually pain free. Unistik® 3 has an additional visual lockout feature.