PP plastic material: These balls are made of PP plastic material, with exquisite polishing process, no seams, reliable and sturdy, and waterproof; The texture of each ball is good and easy to grip; You can use it for a long time Proper size for : The size of these balls is about 40 mm/1.57 inch in diameter and weighs 2.4 grams. The right size makes it convenient to carry or stick them; You can put them in pockets, bags and other places without taking up too much space DIY fun: Each 40 mm ball can be regarded as a decoration for home, trees, parties, gardens, etc. You can also use them to do some DIY crafts to improve your ability The classic size and weight of these regular and neon pong balls make them perfect for your pet's play and activity partners such as cats, dogs, puppies, ferrets, rabbits, lizards, rats and hedgehogs Made of the correct pp plastic, Colour: White Material: plastic Package Contents: 100 x Pong Balls Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.