The unique feature of the Gilder SB50 TEM grid storage box is the circular design with the clear plastic rotating lid. The opening in the lid expose only two or three grids at the time, depending on the position. This safety feature makes this grid box ideal for safe handling of sensitive TEM grids. Storage capacity in the diamond shaped compartments is up to 50 TEM grids. To improve grid handling the plastic boxes are made from anti-static ABS.for the box and anti-static CAB polymer for the lid. Each storage position is referenced by letters and numbers printed on the grid box. Ridges and grooves make these boxes stackable. Dimensions of the Gilder SB50 TEM grid box are: 75 x 65 x 7mm.