Placeholder Image - Missing Visual Content #1698459 (License: Personal Use)

This black-and-white line illustration depicts a cylindrical glass beaker with a flat base, a pouring spout on the rim, and evenly spaced horizontal graduation marks along its side. The design reflects standard lab equipment used for holding, mixing, and measuring liquids in scientific experiments. Its clean, schematic style makes it suitable for textbooks, infographics, and digital learning platforms.

Used in educational websites, science curricula, lab safety guides, and chemistry tutorials to visually represent basic labware; targets students, teachers, and science communicators seeking accurate, royalty-free illustrations.