ORB Odditeez Netballz

Orb Odditeez manufacture squeeze balls that might look like most of the cheaper variants you find, but they are significantly stronger. Made from a thicker, durable rubber, they last longer and are almost impossible to break. (Almost)

The Netballz are spikey balls about 5 cm in diameter, covered in a mesh net, with the added feature of changing colour when squeezed.