Sinner Gear Pinwheel 5-WheelsStimulate, tickle or prick the skin with this metal Wartenberg wheel from the Sinner Gear collection. The Sinner Gear Pinwheel 5 is made of stainless steel and is very strong and durable. The long, narrow handle provides a firm and comfortable grip. The rotating wheels have sharp points that roll over the skin and make sure you get a pricking, tingling feeling. The pinwheel has 5 separate wheels that are easy to clean with toy cleaner and water.