Thick, slightly flared, beaded top, with a spout designed to have excellent pouring characteristics. These beakers have uniform walls throughout and are made of KIMAX KG-33 glass. All sizes have a durable matte finish marking area for use with an ordinary pencil. An easy-to-read white graduated scale is provided on all sizes from 20 to 4000 mL for measuring and/or mixing liquids where a high level of accuracy is not required. Designed from ASTM Specification E960, Type I requirements.