0.5 inch Unsterilized Synthetical Dispensing Needle with Blunt Tip Luer Lock - Fluid Manifold Channel - 10 Different Sizes，50 PCS

Nice value for money. Great stainless steel tips for woodworking using glues and wood fillers. Luer lock keeps tips from falling off under pressure. Way cheaper than any woodworker store product. Will buy again. Not for medical use. Nice color coded assortment!

Buenas , sólidas , pero no sirven para ácido , hay mucho desperdicio , hay que comprar más finas , las numero 25

Well I guess it's exactly what I ordered. However I bought this so that I would be able to dispense glue of diffrent thicknesses into very small areas. 7 of the 10 sizes are thinner than a human hair. I don't even think the smallest ones would dispense water unless the bottle it was put on was under some serious pressure. Most of them went directly into the trash. And the 3 sizes I could use all have a very similar color on them. So I can't tell them apart unless I am in a very bright light.

Half of these have openings too small to allow paint or liquid through them, maybe plain water or ink, but I use acrylic paint to outline my art with. I use the 18 and 20 gauge tips.

The smallest size tip bent when I applied to much pressure. Otherwise they've been very reliable & no leakage has happened.