Specification Brand : QWORK BulletPoint1 : High Quality: Made of premium 3.3 Borosilicate Glass material, heat resistant, acid and alkali resistant, durable to use. BulletPoint2 : Capacity: 250ml, 4 Pieces, detailed size information shown as picture. BulletPoint3 : Heat Resistance: The flares can withstand a standard autoclave cycle of 121°C and 15 psi for 5 minutes. BulletPoint4 : Design: Features narrow mouth and clear printed scales, allow you to measure liquid accuaretly. BulletPoint5 : Usage: plastic conical bottle is a conical container with flat bottom and narrow mouth, which is generally used in titration experiments. In order to prevent the titrant from splashing out of the bottle when dripping, resulting in experimental errors, put the bottle on a magnetic stirrer to stir. You can also hold the bottleneck with your hands and shake it with your wrists, so that you can mix it smoothly and evenly. Capacity : 250 milliliters Capacity1 : 100 milliliters Capacity2 : 1000 milliliters Color : Bell Mouth ExternallyAssignedProductIdentifier1 : 795973616609 ExternallyAssignedProductIdentifier2 : 0795973616609 ItemName : QWORK Erlenmeyer Flask Set, 4 Pcs 250ML Borosilicate Glass Conical Flasks with Narrow Mouth, Printed Scale, for Lab, Classroom, Kitchen, Craft, Home ItemPackageDimensions_Height : 21.0058 centimeters ItemPackageDimensions_Length : 15.5956 centimeters ItemPackageDimensions_Width : 15.6972 centimeters ItemPackageQuantity : 1 ItemShape : Conical ItemTypeKeyword : erlenmeyer-flasks Manufacturer : QWORK Material : Glass ModelNumber : WD30751 NumberOfItems : 4 PartNumber : WD30751 ProductDescription : QWORK ProductSiteLaunchDate : 2023-09-20T10:40:49.522Z Size : 250ml SupplierDeclaredDgHzRegulation : other UnspscCode : 41121800