children's play equipment in various colors, d like a circle made of iron

playground city park play backyard recreation yard leisure garden tree lawn walkway plant vehicle picnic children39aph39s equipment colors shaped like circle iron steel lifestyles metal healthy lifestyle nature chengdu map street cityscape modern adventure seesaw summer red travel sport fun girls child childhood architecture balance bicycle blue outdoor pursuit toy abstract comparison design equality harmony imbalance athlete built structure art chord industry old enjoyment grass happiness slide relaxation multi colored public activity