Black diamond jumbo mouth tips 50 pieces per pack vibrant colors. Measuring about 4 inches in length, these black diamond mouth tips are made from heavy duty plastic that will hold up for multiple uses. Most importantly, hookah mouth tips are the best way to keep your hookah session sanitary. Compatibility - these black diamond jumbo tips are inside fitting, meaning they are designed to fit inside the opening of your hookah hose handle. (If this opening is smaller than 5mm, you will need an outside fitting tip). Comfort - black diamond tips are made using a firm but flexible plastic, so they hold their shape, maintaining good airflow, but are soft on the mouth and extremely comfortable. Fun - the bright colors are perfect for parties, so everyone can keep track of their colored mouth piece .