This is a set of 3 micro syringes. Hamilton micro syringe 0.5ml Luer tip type, ground glass tip The body and pusher show signs of use. No outer box. 700 series micro syringes have a precision error of within ±1%. Their high performance is recognized in laboratories around the world, and they are used as the standard for syringes. Specifications: Needle sold separately Model number: 750 Luer tip LT standard type Capacity: 500μL