Great Extender silicone sleeve extender from Nasstoys! Shaped like the real thing and provides coverage of tip and most of shaft. This sleeve helps to enhance length and girth, as well as assist with endurance. Cleans easily using warm soapy water or toy cleaner. Compatible with water based lubricants ONLY. Avoid contact with silicone lubes/products Dimensions length 7.5 inches. Adds about 1 inch/2.5cm of real-feeling length Uses 2x CR2023 button cells (4 button cells included)