HOLDS 20 TUBES SECURELY – DESIGNED FOR 13MM TUBES: This compact test tube rack for 13mm tubes is perfect for organizing plastic test tubes with caps, blood collection tubes, or test tubes plastic in clinics or labs. Its 20-slot layout ensures your lab tube holder setup stays neat, secure, and ready for fast access during procedures. COLORFUL & FUNCTIONAL RAINBOW TEST TUBE HOLDER: Add personality to your lab with this rainbow test tube display rack, ideal for pediatric, veterinary, and educational settings. The vibrant design enhances patient comfort while functioning as a reliable test tube holder rack for blood draw tubes or small plastic tubes. DURABLE DESIGN FOR VETERINARY AND PHLEBOTOMY USE: Made for daily use in demanding environments, this blood tube holder withstands frequent handling. It’s ideal as a blood tube holder rack for phlebotomy carts, or a lab organizer in any setting where test tubes with rack systems are essential. EASY TO CLEAN & REUSE – PERFECT FOR LAB WORKFLOW: Whether you’re in a research lab, vet office, or teaching environment, this lab tube rack helps streamline your workflow. It fits perfectly on benchtops or carts and works well as a test tube drying rack or a stand for plastic test tubes with screw caps. FOR VETERINARY USE ONLY – FUN & FUNCTIONAL LAB FURNITURE: Intended for veterinary professionals, this test tube stand combines function with friendly design. Use it with plastic test tubes, lab drying racks, or as a blood testing supplies accessory. It's a great addition to your vet tech supplies and veterinary technician accessories collection. Test tube rack with 20 spaces for 13mm tubes. This fun Rainbow Caterpillar styled rack will brighten up your treatment area or phlebotomy cart and bring some levity to phlebotomy tubes. Great for pediatric and veterinary practices. This product fits the 13 mm tubes as listed in the chart - check your tube size.