What it does and why it helps Adjustable clamp base that easily attaches to a table edge for secure, space-saving storage at the workbench. Metal clamp construction provides long service life so the holder remains reliable through repeated use. Designed for laboratory organization: stores bottles, test tubes and similar lab items to keep your bench clear and accessible. Plastic covered pens will not scratch objects, protecting delicate glassware and labeled containers. Key features Function: clamp-mounted storage for bottles, test tubes and related lab supplies. Mounting: adjustable clamp base for direct attachment to a table edge; quick to install and remove. Material: durable metal clamp with plastic-covered contact points to prevent surface damage. Performance: robust, long-lasting clamp mechanism suitable for routine laboratory use. Practical use scenarios Bench organization: clamp the unit to a lab bench to keep reagent bottles and frequently used tubes within reach while freeing up work surface. Sample preparation: secure storing of test tubes and small bottles beside a pipetting station to improve workflow and reduce clutter. Teaching or multi-user labs: attach to a student bench or shared workstation to provide immediate, protected storage for samples and small containers. Why choose this holder Simple, tool-free attachment to a table edge for fast setup and repositioning. Durable metal build for extended service life while plastic-covered contact points protect glass and labels. Practical for a range of laboratory environments where easy access and surface protection matter.