Multiple Sizes: There are 18 different sizes, see the pictures for details to fit different syringes. Blunt needle 3~3.05 x 0.75~1.3 cm/1.18~1.2 x 0.29~0.51 Inch. Package Includes: 8pcs of each size, 18 different sizes (one size for each color), total 144 needles, easy to use and clean. Material: Needle handle is made of Metal and needle head is made of plastic material, which is tough, and stable. Sophisticated Design- The rounded tip of the plastic needle allows for smooth flow of viscous fluids, and the blunt tip ensures precise dispensing and supports repeated use. Wide Application- Dispensing needles are suitable for dispensing machines, liquid dispensing, no ink, oil, paint, glue, etc 144PCS 0.5 Inch 12 Different Gauge Blunt Tip Syringe Needles Dispensing Needle with Lure Lock for Refilling E-Liquid Inks and Syringes Great for essential oil, , flat back rhinestones, hobby crafts, home or industrial precision applications of CA glues, inks, perfume, lubricants, sealants, etc. Color: Mixed Color Material: Plastic+Metal Package Contents: 144PCS * Blunt Tip 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.