With 3 ways to activate and a broader range of sizes than most other brands, SurGuard3 is the industrys most adaptable safety needle. Add separate thumb and finger grips, unequalled sharpness, and competitive pricing, and youll understand why we say SurGuar3 is the one needle that fits every clinicians style. 3 modes of activation-thumb, finger, or hard surface. Separate finger/thumb grips with ridges and nonslip surfaces. Hub and needle locks for security post activation. Broad range of sizes.