Wooden Test Tube Support, 13-Place

This wooden test tube rack accommodates 13 test tubes across two sizes: 7 holes measuring up to 19 mm in diameter and 6 holes measuring up to 25 mm in diameter. The rack also includes 6 draining pins. It is constructed from sturdy hardwood designed to withstand regular laboratory use. The rack provides convenient insertion, removal, and drying of test tubes. It is suitable for science laboratories, classrooms, and general-purpose test tube organization.