Number of pieces per package 1ml - 100 pieces The transparent barrel allows for full visual inspection of the contents. A double-ring seal on the cap located on the top of the plunger ensures smooth plunger movement. A rubber seal ensures smooth plunger movement. A restrictive orifice prevents accidental plunger removal. The syringe name and manufacturer's logo are located on the barrel. A clear, legible, and durable black scale facilitates easy dosing. Graduated in 0.001ml (from 0 - 1.0ml). Single-use, non-pyrogenic, non-toxic. Latex-free, phthalate-free. Packaging: 1 piece/paper-foil.