Made to our specifications of laboratory grade Borosilicate glass for testing higher proof products, this cylinder measures 12 in. tall x 1 in. The 3 in. diameter base has 3 contact points to resist tipping. Because this specialized cylinder is intended for quick and clear hydrometer readings there are no graduations to obscure your instrument, and the narrow 1 inch diameter bore means you can take an accurate reading with less product than a normal graduated cylinder. Comes with pour spout and heavy fire-polished rim to resist chipping. This is a heavy gauge piece of glassware at a reasonable price!