BD Integra SYRINGE / NEEDLE Combination 3ml 21g x 1-1/2" (305274). BD Integra™ Syringe with Retracting Needle. Retracting needle is housed inside the syringe after activation, eliminating the potential for needlestick injury. Single-handed activation. Detachable needle. Low waste space and dosing accuracy. BD PrecisionGlide™ Needle Technology. Sterile, single-use. 100/BX 4BX/CS. Priced per box.