Clear Plastic Test Tube Rack Set, 2 Sizes, 50 Holes, Djibouti

This rack is made of polystyrene. Great to hold tubes for parties, lip balm kits, essential oil preparation, make-up, ink kits and other cylindrical objects 50 hole,Diameter: 18.7mm/0.74 These are great for making homemade chapsticks, storing ink samples, test tubes, lip balm, great for holding small cylinders upright Suitable for test tubes with an OD ranging from 15mm to 18mm The test tube rack are made of laboratory grade polystyrene, durable and light weight, easy to carry, not autoclavable The stand has three layers of holes with a smallest hole at the bottom to keep tubes steady, and the large holes on the second and the top floor