6x 28 Well Test Tube Racks

For sale are 6x test tube racks. Each one measures 8" L x 3.8" W x 1.8" H. Large well diameter 1.18", small well diameter 0.65". Ideal for laboratory use, provides clear view of the tube contents and easy insertion and removal of tubes. The temperature range is -20 to 70 ℃ (can NOT be boiled for disinfection), resistant to acid, alkali. These racks are very versatile and can be used to hold anything in an upright position, including DIY lip balm, floral tubes, skewers, seedlings, your imagination is your only limitation. I intended to use these to hold floral tubes for my caterpillars but unfortunately the floral tubes don't work with these racks. These were assembled but never actually got any use.