Cat Kicker Toys – 15" Set of 2, Durable Cat & Kitten Kick Sticks with 100% Potent Catnip. Handmade in USA. Encourages Exercise & Interactive Play for Indoor Cats of All Breeds. (Mystery Choice)

He is doing this because you use your hands and arms like they are attack toys. If you want him to stop, you will need to learn to play with him by not using your arms and hands as toys. Things like kick sticks, and other toys will eliminate it, Ones like this are the best because the others are too soft and collapse, Amazon.com : Cat Kicker Toys – 15" Set of 2, Durable Cat & Kitten Kick Sticks with 100% Potent Catnip. Handmade in USA. Encourages Exercise & Interactive Play for Indoor Cats of All Breeds. (Mystery Choice) : Pet Supplies