The Cryo Grid Boxes are used for storing and transferring vitrified Cryo-EM specimens prepared with cryo-devices like the FEI Vitrobot, Gatan CP3, Leica EM 6P, as well as other cryo vitrification systems. Each box holds 4 grids and is available in two colors and three versions: with clear lid, pin type lid, and without lid. All boxes have a UNC 5/40 thread in the center. On versions with clear lids, the lid is held in place with a stainless steel screw.