When you first get the mesh soap saver, it is in a very neat cylinder shape but it easily expands to accept a wide variety of shapes and sizes. Just slip your soaps in and close the top by pulling on the cord. A great little spring loaded stopper will lock it. The mesh creates lots of lather and exfoliates your skin. A convenient cord lets you hang it up when you're done. The assorted colors are packaged in bags of 4. They are also commonly called soap sack, soap bag, soap pouch. These are slightly smaller (6.5" X 1.5") than our large size mesh soap savers.