Spancare Stand Holder Test Tube 50 Holes for Diameter Tubes 12mm (Pack of 4)

stand holder Test tube 50 holes for diameter stand holder Test tube 50 holes for diameter tubes 12mm (pack of 4) Colorful Test tube stand blue 50 holes for 12mm diameter test tubes or vials It is a stackable type test tube stand which can be stacked one upon other when not in use. Balanced bottom to avoid risk of falling. size 150x75x40mm Multipurpose Block type 50 holes test tube stand and sample tube tubes and vials,pack of 4 colorful Size compatible for 12mm diamter test tubes or vials