The Manhattan Toy Winkel is a ball of bright colored, slim, flexible bands. The tangle of bands are small enough so they are easy to grab for a baby. The rattle on the inside is soft and engaging without being loud and obnoxious (like many other rattles). This toy can be refrigerated for teething babies, it aids in the development of 2-handed play, is 4.5 inches around and made of safe plastic. The Winkel will start engaging and amusing your 3-5 month old.