Made of material, 8 holes and supplied with high grip stoppers. Reusable and hand washable. Perfect for laboratory, provide clear view of the tube contents and convenient insertion and removal of tubes. Features - Color: As shown. - Material: Wooden - Size: 30x6x9cm - Made of wooden material, lightweight, convenient to carry. - Resistance to acid, alkali, corrosion, and etc. - Test tube rack to hold or drain out test tubes. - Perfect for laboratory, provide clear view of the tube contents and convenient insertion and removal of tubes. - A nice supplies for laboratory, school and home. Warm Tip: Dear buyer, Due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand Thank you