PP plastic material: These balls are made of PP plastic material, with exquisite polishing process, no seams, reliable and sturdy, lightweight and waterproof; The surface texture of each ball is good and easy to grip; You can use it for a long time Proper size for easy play: 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 for you 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 ping 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 Ping Pong Balls