Specification Brand : Karter Scientific BulletPoint1 : Cardboard Rack: Coated for water resistance, Holds 50 Tubes, White, 16mm BulletPoint2 : Fits 14 - 16mm diameter test tubes BulletPoint3 : 50 Holes BulletPoint4 : Holes measure 30 mm on the top row, 17 mm on the second-to-top row, 12 mm on the second-to-bottom row, and 8 mm on the bottom row BulletPoint5 : Made in the usa Color : Yellow IncludedComponents : 1 pcs Test Tube Rack,Acrylic ItemName : 50 Place, 16mm Coated Cardboard Test Tube Rack, White, Karter Scientific 116A1 (Single) ItemPackageDimensions_Height : 7.5 inches ItemPackageDimensions_Length : 0.021 inches ItemPackageDimensions_Width : 7.5 inches ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-tube-racks Manufacturer : Karter Scientific Material : Cardboard ModelNumber : 2406400Y10E1 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : 116A1 ProductDescription : Karter Scientific is a registered trademark in United States of America. To maintain quality control, authorized permission is required in the resale of our products. Economical cardboard rack coated for water resistance. Holds 50; 14-16mm diameter test tubes ProductSiteLaunchDate : 2022-01-27T23:05:02.978Z Size : 16MM / 50 HOLES StreetDate : 2018-06-01T00:00:01Z Style : SINGLE SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 4 UnspscCode : 41000000