Desco Lab Cryo Rack is molded in polycarbonate making it touch, durable & autoclavable. This handle rack can hold 50 vials at a time. The unique feature of this rack is that vilas can be unscrewed without actually picking them up as the vival will lock in every well and hence will not twist. This rack is provided with four anti skid rubbers & each well is identified with an alphanumeric index.