There’s no pole to thread onto or 'right' way to play with these: each chunky element has loads to offer, they can be chewed, waved, rolled, thrown, piled and wobbled. Brilliant for developing so many skills - hand-eye coordination, learning about balance, height, size and order - and the silicone is robust, hygienic and safe. Promotes fine motor skills. No central pole. Suitable from birth. Dishwasher safe.