It's easy to apply your favorite body lotion, suntan lotion, bath gel, massage oils and more to your entire body. Just fill the Roll A Lotion reservoir with your favorite product. 19 rolling balls apply the lotion evenly to your skin. Even hard to reach areas get covered. Plus, it provides a gentle yet powerful massaging action. When finished, just place the airtight cover over the heads to keep the solution from drying out and hang it wherever you like. Measures 3 1/2 diameter head: 171/2 long Product dimensions (imperial): 18 inch L x 3.5 inch W Product dimensions (metric): 457.20 mm L x 88.90 mm W