Egg shaking head The vibrating egg can be adjusted. Extreme vibrating eggs. Vibrating eggs. Very curvy head. Super powerful. The vibrating egg head. Waterproof, quiet sound. Vibrating. Made from good quality materials. 100% good quality guaranteed. It has never been a climax. It is very thrilling. Let me tell you, this new one uses the latest AAA * 2 batteries, 2 inches long, around 2 inches rings.