The American Educational 7-551000 1,000mL Erlenmeyer flask is made of heavy-walled borosilicate glass (Bomex) to withstand temperature changes which can lead to cracking while mixing or storing chemicals. It is clear for visibility of contents, can be autoclaved, and withstands temperatures up to 500 degrees C (932 degrees F) for a short period and up to 150 degrees C (302 degrees F) for continuous use. Printed graduations indicate the approximate volume, and the smooth tooled neck facilitates cleaning and pouring. The flask measures 8-1/4" high with a 5" base diameter and a 2-1/8" neck opening, and can be fitted with a size #9 stopper (not included.) Borosilicate glass (Bomex) is type 3.3 as specified by ISO 3585.

Flasks are glass or plastic containers for storing or collecting chemical samples or solutions in scientific laboratories. They come in a variety of sizes and shapes and are designed for a wide range of scientific processes. Erlenmeyer flasks, introduced by German chemist Emil Erlenmeyer in 1861, are shaped like a cone with a wide, flat base that narrows to a neck opening, which can be closed with a stopper or cap.

American Educational Products manufactures educational and supplemental learning materials including math, science, and reading/language arts for pre-kindergarten through grade 12 students. The company, founded in 1986, is headquartered in Fort Collins, CO.