CELLTREAT Tissue Culture Treated Multiple Well Plate with 48 wells. Flat bottom. Cell Growth Area: 0.84cm2. Max well volume: 1.55mL, working volume: 0.19 - 0.29mLPlates are labeled with alpha-numeric markings for easy identification of individual wells. Each well has a raised rim which nests into the rings on the single direction lid to reduce evaporation and limit the risk of cross contamination. Lids have a stacking ring for added stability when handling tall stacks of plates. Manufactured from medical grade virgin polystyrene. RNase/DNase Free and Non-pyrogenic. All multiple well plates are packaged sterile (gamma irradiated) in peel-to-open tray packaging.