If you’re looking to add some excitement to your next smoking session, look no further than The Silicone Knuckle Bubbler designed to resemble the iconic self defense street tool perfect for Joints & Blunts. Considering its designed to resemble a street self defense tool it is harmless as it is made of pure silicone. The pipe is 5 Inches long with color variations. The colorful style and comfortable feel that this bubbler offers means that smoking a blunt or a joint will be much more fun. With fingers going in and out of the holes like brass knuckles, it's less likely you'll drop this thing