... , three-part,luer lock,luer slip are avaible. With or without needle. Disposable syringes Features:1. size: 1ml, 3ml, 5ml, ... 10ml, 20ml, 50/60ml;2. with needle or without needle; ... piston in good quality.6. color: white, transparent, noramlly orange for insulin, special color depends. Disposable Syringes 50/60ml with catheter tip