Gears + oil = a mess. Gears + water = hours of bath time fun. COGS suction to the bath walls and spin when water is poured over them. Positioned just right, they work like a fine-tuned (though not well-oiled) machine. Use COGS with PIPES Bath Toys for maximum fun. Gear heads unite!
Wash thoroughly before initial use and periodically. Hand wash in warm, soapy water. Rinse with clear water and air dry.