Medline-L-Shaped-Spreaders-Medline-MLSP25-p-L-shaped-or-Digralsky-spreaders-from-Medline-designed-for-surface-spreading-of-test-samples-They-are-made-of-white-polystyrene-which-has-been-radiation-sterilized-The-base-length-allows-the-spreading-of-liquid-samples-over-any-type-of-Petri-dish-&-avoids-contact-with-the-dish-walls-The-spreaders-have-curved-extremities-&-rounded-corners-to-help-to-avoid-damaging-the-surface-of-the-media-while-spreading-Supplied-in-packs-of-25