These FUN bouncy balls that glow in the dark and have tails that wiggle. Interesting and unique. Colorful and handcrafted. Cats and their owners LOVE them. Great for impulse purchases and best displayed near registers. They are IRRESISTIBLE! Balls measure approx. 1.75 in. and the tails between 5-8 in long. Mixed colors. We cannot guarantee what color wiggly ball you will receive.