stonylab Test Tube Rack, 3 Tier Detachable Blue Plastic Rack Holder Stand for Laboratory Scientific Experiments, 18 mm 40 Place

Test Tube Organization: This 3-tier plastic test tube rack is laboratory accessory equipment used to hold multiple test tubes upright at once, giving easy access to tubes with organized storage and protection Precise Fit: Each grid measures 18 x 18 mm, and the rack has 40 sections sized for test tubes with an outer diameter of up to 18 mm Compact Size: Overall size after assembly is 250 x 113 x 65 mm (L x W x H) with a 2 mm plastic board thickness for a sturdy yet lightweight build Removable Design: The tiers detach for quick, easy assembly and disassembly, allowing space-saving storage when the rack is not in use Durable Plastic Build: Made of chemical-resistant blue plastic suited for chemistry laboratory settings, classrooms, and science accessory display use