Test Tube Rack, 12 Holes 0.75in 3 Tiers Metal Test Tube Rack Stainless Steel Centrifuge Tube Holder for Laboratory School Scientific Experiments

DESIGNED FOR 19MM TUBES: This test tube rack is designed with 12 holes in total, and each hole is about 19mm / 0.75in in diameter. 304 STAINLESS STEEL: This centrifuge tube holder is made of premium 304 stainless steel material, and it's featured with sturdy structure and excellent impact resistance. 3 TIERS: This test tube holder features 3 tiers design which can hold the tube firmly and avoid the test tube damage effectively, ideal for laboratory. WIDE APPLICATION: This centrifuge tube rack is widely applicable to scientific experiments, plant propagation and storage of cooking spices. EASY TO USE: This stainless steel tube rack is ideal for laboratory, which can provide clear view of the tube contents and convenient insertion and removal of tubes.