Vibrant colours to brighten up borders & pots. Spring mechanism makes them dance & shimmer in the breeze. Plant the mushrooms close together to make musical notes. The set of 3 contains 1 large (56cm) & 2 small (46cm) These are coated metal. To maintain the colour, keep out of the brightest sun, & coat in something like WD40 to prevent rusting. Even if they do fade or rust a bit, they still look lovely.