Compatible with :for Contigo Aubrey Water Bottles These replacement spout are specifically designed to be compatible with the Contigo . Free Installation:Upgrading your water bottle is a breeze! Simply remove the old spout, then insert the new one from the inside out. It's that easy to complete the replacement. High Quality - :The use of silicone replacement mouthpieces is not only reliable, but also durable to ensure long-term use. Precision Engineering: The water bottle spout replacements are designed with rigorous precision. They fit snugly, have an excellent seal, and are easy to clean. Please check compatibility with your kettle before purchase. Package included:4× Silicone Spout Replacement for Contigo Water Bottles Compatible with :for Contigo Aubrey Water Bottles These replacement parts are specifically designed to be compatible with the Contigo .