Specification Brand : Corning BulletPoint1 : Narrow mouth graduated flasks are versatile and reliable tools for accurately measuring, mixing and storing liquids in a laboratory setting. Glass erlenmeyer flasks are made of good materials. Graduated flasks are strong and durable, with a stable bottom and high transparency. They are widely used in scientific laboratories, education, industrial research and development, etc. BulletPoint2 : Specification: Color: Transparent Material: High Borosilicate Glass Capacity: 150ml / 5.1oz Total High: 150 mm/ 5.91 inch Bottom Diameter: 75 mm/ 2.95 inch Bottle Mouth Outer Diameter: 43 mm/ 1.69 inch Packing List: 2 x Glass Erlenmeyer Flask; 2 x Silicone Stopper BulletPoint3 : [Good High Borosilicate Glass] The erlenmeyer flask uses high borosilicate glass, which is high temperature resistant, chemically stable, and has strong corrosion resistance. [Clear Scale] The scale on the surface of the graduated flasks is clear, allowing precise volume measurement to ensure the accuracy of the experiment. [Narrow Mouth Design & Silicone Stopper] The narrow mouth design of the erlenmeyer flask and silicone stopper can prevent experimental liquids from evaporating and spilling. BulletPoint4 : Instruction: [Easy to Use] The graduated flasks are suitable for beginners and professionals. The glass erlenmeyer flask is also suitable for teaching activities, fun experiments, etc. It is convenient and practical. BulletPoint5 : NOTE: 1. Please check the size before purchasing. 2. Please handle glass products with care Capacity : 250 milliliters Color : 3000 ml ExternallyAssignedProductIdentifier1 : 850034427935 ExternallyAssignedProductIdentifier2 : 0850034427935 GraduationInterval : 3000 milliliters IncludedComponents : Erlenmeyer Conical Borosilicate Glass Flask 500ml and Rubber Stopper ItemName : Corning Pyrex Erlenmeyer Flask Set with Rubber Stoppers - 3 Sizes - 50mL, 125mL, 250mL ItemPackageDimensions_Height : 13 centimeters ItemPackageDimensions_Length : 21.4 centimeters ItemPackageDimensions_Width : 16.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : erlenmeyer-flasks ItemVolume : 500 milliliters Manufacturer : Karter Scientific Material : Borosilicate Glass ModelNumber : 204R3 NumberOfItems : 5 PartNumber : 43237-2 ProductDescription : Corning Pyrex Erlenmeyer Flask Set with Rubber Stoppers - 3 Sizes - 50mL, 125mL, 250mL ProductSiteLaunchDate : 2016-04-01T07:59:16.034Z Size : 50/125/250 SpecificationMet : certified frustration-free Style : RUBBER STOPPER SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41121804