Storage Mat III fits Corning® 96 round well plates and blocks. Storage block mat fits Corning® 96 square 2mL well storage blocks. Manufactured from EVA (ethyl vinyl acetate) and is compatible with DMSO. Certified DNase- and RNase-free. Can be applied manually or with the Storage Mat Applicator which evenly applies storage mats to Corning® 96-well polypropylene plates, blocks, and 96-well polystyrene plates. Nonsterile.