Big-Flip 3 Inch Tall Cardboard Freezer Boxes With Attached Hinged Lid and Numbered 9 x 9 Grid For 4mL Cryovials Up to 13mm Diameter, White, 5/PK

Fully assembled three inch tall cardboard freezer boxes with an attached hinged lid to assure correct orientation every time

Big-Flip™ cardboard freezer boxes are coated in waxed paper to increase durability and longevity.

Big-Flip™ cardboard freezer boxes have a numbered grid lid which matches the grid on the interior of the box

Each of our cardboard freezer boxes feature drainage holes making them suitable for use in all types of ultra low temperatures and cryogenic storage systems. 

Big-Flip™ cardboard freezer boxes will hold 4mL cryovials and any tube up to 13mm in diameter. 

These cardboard freezer boxes are available only in white and come in packs of five