The 2117 Pk6 Sola Atta Ball from Bonka Bird Toys are excellent, natural and easy to play with foot toys for your feathered friends and many other types of small pets These balls are made from the root of the Sola plant The material has a soft and firm texture thats easy to bite and safe to chew The balls have many pieces of the stem of the plant made into a sphere form The centers of each stem have a different color created an eye catching surface The balls are very lightweight and easy to pickup making them ideal foot toys for pets of all ages and abilities Sola plant is great for other small pets too making it very versatile and wide ranging Easy to break up the sola balls can be turned into foraging material quickly and used to fill other toys The 2117 Pk6 Sola Atta Balls are 100% bird safe and each measure about (225) inches in diameter this does range from ball to ball as these are natural items