Features: Brand new and high quality High-quality material: The 24-hole frame (4x6) acrylic Switches tester frame is made of high-quality acrylic material with high transparency and durability. Large capacity design: there are 24 holes into frame, which can accommodate 4 row and 6 column of test tubes at the same time, meeting the storage requirements of various reagent test tubes. Accurate size: each hole position is accurately measured and polish to ensure the stability and accurate alignment of the shafts body. Convenient assembly: convenient for cleaning and maintenance. Lightweight and Portable: As it is made of acrylic material, lightweight and easy to carry and move. Specifications: Material:Acrylic Package Includes: 1x Switches Tester Frame note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.