The Pik Pocket Tip is designed with a soft rubber tip for gentle, low-pressure delivery of water into periodontal pockets. It's ideal for people with gum disease or deep pockets around teeth. Clinically proven to access 90% of a 6mm pocket. Replace every 3 months. Suitable for use with: Waterpik Water Flosser (excluding Whitening Water Flosser) Colours may vary.