Globe Scientific 457200 Stainless Steel "Z" Shape Tube Rack, 16/17mm Tubes, 25-Place

https://www.amazon.com/gp/product/B00G6TCC4Q/ref=ox_sc_saved_title_2?smid=ATVPDKIKX0DER&psc=1

Price:  $18 includes tax

From Heather Parker:  Test tube racks help keep our classroom organized and there's less chance to spill or contaminate our experiments!