[Quality Material]:Those 1ml glass luer lock syringe tube are made of heat-resistant reusable borosilicate glass which makes the syringe more resistant to thermal shock, very durable and not easily broken more so than any other common glass. Measurement markings don't disappear like plastic! [VERSATILE USE]:Our borosilicate glass syringe can be used for Oil, EJuices, Liquids, Glue, Veterinary, Oral, and Lab Syringes,It is also for labs and veterinary offices that prefer non-plastic tubes. [LEAK-FREE]:The device is fitted with a plastic Luer lock & plastic plunger, which prevents leakage and keeps contents sterile. This feature also allows a mess-free transfer, refill and measurement of liquids,the Glass Tubes are Resistant to Temperature Changes. [Safe & Easy to Clean]:Pre- Contents that are Hermetically Sealed and Packaged in a Clean Room Environment,Maintenance is made even easier by an easy disassembly of the syringe, which can be broken down into 4 separate pieces,while being easy to Use and Clean. Colour:White Material:Glass Package Contents: 50 * cartridges Only the above package content, other are not included. Note: Light 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.