Unique needle locking mechanism to help reduce the risk of needlestick injury An audible click indicates device activation One-handed activation for ease of use Sleek, Thin, Streamlined Sheath Bevel-up, sheath right needle orientation, especially useful for low-angle injections Ratchet mechanism, allows for precise positioning of sheath so as not to obscure injection site Standard hub fits all luer lock and luer slip syringes