Color:Surf Blue Add fun and functionality to your bathroom with the bubble foaming soap pump by Umbra. Made of glass and silicone/rubber non-slip base, bubble has a capacity of 11 ounces (325 ml). By using a mixture of liquid soap and water to create the foaming action (we recommend 10 percent soap/90 percent water), bubble conserves on soap usage and helps save on supply costs. Bubble measures 3-1/2-Inch in diameter by 6-Inch tall. Designed by Dennis Cheng for Umbra- original, modern, casual, functional and affordable design for the home.