High-quality durable plastic test tube rack

Description:
* Autoclavable Polypropylene (PP)
* Sturdy construction is durable and chemical resistant.
* Versatile design accommodates various tube sizes on both sides.
* Each size:17cm x 9cm x 5cm
* Holds the following tubes on 4 sides:
  4-50ml tube (well diameter: 29mm)
  12-10ml or 15ml tubes (well diameter: 17mm)
  32-1.5ml or 1.8ml tubes (well diameter: 11.5mm)
  32 - 0.5ml tubes (well diameter: 8mm)