This metal clamp is designed for secure, low-impact storage of bottles, test tubes and similar lab containers on a bench or table edge. Key benefits Keeps frequently used containers accessible and organized at the workbench edge, saving bench space and reducing clutter. Durable metal construction provides a long service life for reliable daily use in laboratory settings. Plastic-covered pens protect glass and plastic containers from scratches and surface damage. Adjustable clamp base secures quickly to a table edge without permanent installation, so you can reposition or remove it as needed. What it does and how it helps Function: Holds bottles, test tubes, and similar items off the bench surface while keeping them within reach for handling and observation. Problem solved: Prevents containers from rolling, cluttering the bench, or being placed in potentially unsafe locations; reduces accidental scratches on sensitive surfaces. Performance: Stable holding with a robust metal clamp and protective plastic-covered pens that cushion contact points. Compatibility and materials Compatible with bottles, test tubes and comparable laboratory containers. Constructed from metal for strength and longevity; contact points are fitted with plastic-covered pens to avoid scratching. Installation and use Adjustable clamp base attaches easily to a table or bench edge — no tools or permanent mounting required. Tighten to secure, loosen to remove or reposition. Simple to use and suitable for routine lab workflows. Typical applications Routine sample handling: Hold test tubes and small reagent bottles at the bench edge during pipetting or labeling. Teaching labs and demonstrations: Keep demo bottles visible and accessible without crowding the workspace. Clinical or prep benches: Temporarily store vials and containers during sorting, inspection, or small-scale procedures. Materials: metal clamp with plastic-covered pens. Function: secure, non-scratching storage at a table edge with an adjustable clamp base.