Features: 2 standard for your option: 25cm/32cm. Sturdy- Support: This microscope stand provides a stable and durable base for your microscope, ensuring steady observation. High-Quality Material: made- of high-quality plastic, this stand is lightweight and sturdy-, making it easy to handle and move around. Ideal- for Students and Hobbyists: Whether you are a student or a hobbyist, this microscope stand is perfect for any level of user. Versatile Use: suitable for variety of microscopes, this stand is ideal- for use in labs-, schools, and homes. Specifications: Size: approx 220x76x25/8.7x3x1-inch Diameter: approx 25cm/32cm(optional) Color: white/black Package Includes: 1xMicroscope stand note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.