Optimal Insulin Storage: This refrigerator storage caddy can hold up to 5 insulin vials, each with a diameter of approximately 0.94 inches (2.5 cm). It is specifically designed to be compatible with standard U-100 insulin vials. Ensure your vial size matches for efficient storage. Space-Efficient Solution: Say goodbye to cluttered refrigerator shelves! Our wall-mounted vial storage case optimizes your space, allowing you to organize your insulin efficiently and free up valuable refrigerator space. Durable Acrylic Material: Constructed from high-quality acrylic, this insulin vial holder is robust and designed to protect your diabetes care supplies. It withstands regular use without damage, offering a dependable solution for your diabetes management. Convenient Wall-Mounted Design: Avoid the hassle of searching through refrigerator compartments. Our wall-mounted insulin vial holder provides easy access to your insulin, streamlining your diabetes care routine and making management a breeze. Simple Installation Process: Install this insulin vial holder quickly and without complications. Clean and dry the refrigerator wall, apply the included double-sided tape, and your insulin supplies will be organized and within easy reach. Colour:Transparent Material:acrylic Package Contents: 4 x stand Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.