This Benchmark Scientific BSH100-1213 block is designed to securely hold 15 tubes with a diameter of 12-13mm each. With a height of 60mm and no lid, this block provides easy access to the tubes during experiments or procedures. Made with quality materials, this block ensures stability and durability during use. Compatible with various laboratory applications, this block is a reliable tool for heating, cooling, or mixing samples efficiently. Upgrade your laboratory setup with this versatile block from Benchmark Scientific, known for its commitment to quality and innovation in lab equipment.