These Griffin beakers feature thick, slightly flared, beaded tops with a spout designed for excellent pouring characteristics. They have uniform walls throughout and are constructed of KIMAX KG-33 glass. All sizes have a durable matte finish marking area and a white graduated scale for measuring and/or mixing where a high level of accuracy is not required. Designed from ASTM Specification E960, Type I requirements. The starter pack is an assortment ideal for start-up requirements and customers seeking a variety of popular beaker sizes. The pack consists of five beakers (one each) in sizes of 50mL, 100mL, 250mL, 600mL, and 1000mL.