The tissue culture Flask with re-closable lid offers flexible access to corners of the flask Multiple time user can access the flask chamber and close the lid which is liquid and gas tight Complete access to flask chamber from the top Safe, stable, slip-free stacking of multiple flasks Optionally available with barriers with additional safety zone of 115cm2 (Product code # 90652) Re-closable flasks are ideal for working on large size tissue grafts, scaffolds of skin, 3D Bio printing of tissues/organsLab grown cells based edible meat Experimental in-vivo biological assays of fish, shrimp, insect larvae/juvenile under highly sterile in house conditions Pluripotent stem cell colony selections