Specification Brand : Boxwizard BulletPoint1 : PROFESSIONAL DESIGN: These tube racks are designed for 17mm/0.7inch test tubes or centrifuge tubes, suitable for laboratory or home use. BulletPoint2 : HOLD 18 TEST TUBES: Test tubes test tube racks can hold 18 test tubes in an orderly manner, thus saving a lot of space and serving as a carrier for better tube movement. BulletPoint3 : POLISHED SURFACES: Centrifuge tube rack has a highly polished surfaces with no edges or sharpness corners and is chemically resistant. BulletPoint4 : ACRYLIC MATERIAL: Test tube holder is made of acrylic material, clear, glossy, strong structure, strong impact resistance, light weight and . BulletPoint5 : VERSATILE: Not only for experiments, but also for kitchen storage of ground spices or spice mixtures. ItemName : Clear Acrylic Test Tube Rack for 17mm Test Tubes 18 Holes Test Tube Holder for 10ML15ML Test Tubes ItemPackageDimensions_Height : 7 centimeters ItemPackageDimensions_Length : 16 centimeters ItemPackageDimensions_Width : 8 centimeters ItemTypeKeyword : science-lab-tube-racks tube-racks Manufacturer : Boxwizard ModelNumber : Boxwizard4ch618nq7t NumberOfItems : 1 PartNumber : Boxwizard4ch618nq7t ProductDescription : Spec: Item Type: Acrylic Test Tube Rack Material: Acrylic Size: Approx. 15 x 7.6 x 7cm / 5.9 x 3.0 x 2.8in (Manual Measurement Error of 0.1 to 0.2cm) Use: Suitable for Laboratory or Home Use, Used to Store Test Tubes with Aperture Approx. 17mm / 0.7in