A "climbing frame" is a structure, usually made of metal or wood, that children can play on. It typically has bars, ropes, and platforms that kids can climb, swing, or slide on. Full definition
I do love a decent playground like that with a good climbing frame in it, makes for such fun. (onlybestforbaby.com)
The wire bars in these cages create a giant climbing frame for your hamster, which can be fun and a good source of exercise for him / her. (thehamsterplace.com)
His sculptures, made up of precise mathematical forms and angles might be described as playground climbing frames designed to poke a child's eye out. (telegraph.co.uk)