Description: Well made of heavy duty borosilicate glass, for chemical, thermal expansion, shock and heat resistance Designed with easier handling and more efficient storage of, biologicals, and other aqueous solutions White enamel graduations and marking spots, easy to identify and label for security and accountability Wide mouth opening allows for quick fills, commonly used as lab bottles, jars in laboratory, and home uses Linerless polypropylene screw cap to help prevent spills and evaporation Specification: Material: Borosilicate Glass Size#1 ( H x Dia. ): approx. 99mm x 57mm / 3.9 Inch x 2.2 Inch; Overall Capacity: approx. 100ml Size#2 ( H x Dia. ): approx. 137mm x 70mm / 5.4 Inch x 2.75 Inch; Overall Capacity: approx. 250ml Size#3 ( H x Dia. ): approx. 180mm x 86mm / 3.9 Inch x 3.38 Inch; Overall Capacity: approx. 500ml Size#4 ( H x Dia. ): approx. 230mm x 97mm / 9 Inch x 3.8 Inch; Overall Capacity: approx. 1000ml Neck Diameter: approx. 30mm / 1.18 Inch Color: Transparent + Blue Package Includes: 1 Piece Graduated Reagent Bottle Note: Customer satisfaction is our primary concern. If the product is somehow cracked or broken during shipping, please feel free to contact us. We will try our best to give you a satisfactory solution.