Specification: 【Warm Note】-Industrial use only, NOT FOR MEDICAL. Material: stainless steel+plastic Color: transparent, pinks, green, black, blue, purple, orange.Sent Randomly Type: 14GA,15GA,16GA, 17GA,18GA, 19GA,20GA, 21GA.22GA, 23GA, 25GA,27GA. Package Include: 25pcs(Delivery per your choice) Pay Attention: Not for professional medical using. 【Luer Lock Connection】- The luer lock is a connector can forestall the needle falls off from the syringes. 【Widely Use】- Great for wooden adhesive, glue injector, primary oil dispenser, grain alcohol, science lab measuring, hobby crafts, paint, precision applications of CA glues, ink refill, perfume measure and injection, lubricants, sealants etc. note:Since the displays haven't got an analogous calibration, there will be slight variations in color, please consult with the particular situation.