Model: 1ml with 30G (8mm long), 50 pack. Material: laboratory measuring device made of high-quality plastic. Smooth piston ensures smooth running and prevents leakage. Easy to read scale with a minimum reading of 0.02mL. Our goal is to provide our customers with high quality products. Please contact us with any questions you have. Colour:As Shown Material:plastic Package Contents: 50 x sprayer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.