This wobble toy sits upright, with a ball in the open top half to slow down fast eaters and provide an extra challenge, while the bottom half is weighted to encourage clacking action when dogs move it with their nose or paws. The ball can be removed for easier rewarding and encouragement, then replaced to increase the challenge. The KONG Rewards Tipsy is also great for weight loss, giving dogs exercise while they work at eating their food. Its unpredictable movement stimulates natural foraging instincts, keeping even the most experienced dogs engaged. Ideal for indoor enrichment. The top unscrews for easy cleaning.