Features: easy-grip workstation rack has individual positions which feature ribs to interlock with self-standing vials for easy one hand opening, features four gripping feet for increased stability and reduced slipping, and has low-profile design for maximum storage efficiency celltreat freeze cryogenic vial storage boxes are made from durable polycarbonate material designed to withstand a wide temperature range and is a reusable, autoclavable alternative to disposable racks ventilation holes in the lids and bases prevent vacuum sealing in freezer storage boxes are labeled with numeric markings on the base of the box for easy identification of individual positions, with or without the lid 100-place rack features ridges along the sides to improve handling