Rapid ECH0137E 1000ml Beaker is made of premium quality, translucent polypropylene plastic with 20ml raised graduations and specifications and a tapered spout for easy pouring. Beaker measures 5.8"" tall and 4.6"" in diameter. Inner diameter measures 4.4"". Microwavable, autoclavable, with very good chemical resistance. Can withstand temperatures between -20°C to 135°C.