Feature: 1. Laboratory lifting platform is a supporting instrument used to adjust the height of the object. 2. Mainly used for lifting objects or instruments in middle school physics, chemical and biological experiments. 3. Stable lifting position, the height adjustment range is 52mm-145mm, and stable structure. 4. The upper and lower panels uses aluminum oxide, with high surface density, acid and alkali resistance, and rust resistance. 5. The joint adopts super heavy pressure technology, which is not easy to fall off and has strong bearing capacity. Specification: Item Type: Lifting Platform Material: Aluminum Oxide Purpose: The lifting platform is a supporting instrument used to adjust the height of the object. It is used for lifting objects or instruments in middle school physics, chemical and biological experiments. Table Size: Approx. 100x100mm / 4x4in Maximum Height: 145mm / 5.7in Minimum Height: 52mm / 2.0in Load-Bearing: <5kg / 11lb Use Environment: Try to avoid contact with corrosive substances such as acid and alkali during use. After use, it should be kept clean and stored in a cool, dry, and non-corrosive environment to prolong its service life. How to Use: First select a suitable lifting platform according to the weight and the area of the load. When in use, place the lifting platform on a stable surface, turn the handle to raise the lifting platform to a suitable height, and adjust it.. Package List: 1 x Lifting Platform Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.