[Sterile Individual Packaging]: Each box includes 100pcs disposable 21ga 1 inch needle with protective cap,individually packaged. [Industrial-Grade Needle]:The 21 gauge needle design balances flow the control of liquids (e.g., water) while minimizing clogging. [Universal Compatibility of Syringes]: Fits standard straight and Luer Lock ports syringe tools, ensuring secure connections for precise dispensing. [High-Quality Construction]: 21gague needles 1 inch are made of stainless steel and premium plastic to maintain long-lasting durability. [Wide Application]: Ideal for measuring liquids, adhesives, lubricants, sealants, etc. in scientific labs or industrial precision applications.