Convenient Stopper Storage: Peterpan The Original Design Hot Water Bottle Lanyard (2nd Gen, 2024 Release) - Keep Your Stopper Within Reach, Never Lose Your Stopper Again | Large Capacity: 100 fl oz (3 liters) rubber hot water bottle, perfect for sleeping and staying warm | Durable and Safe: Made with 55% high-quality rubber without BPA or phthalates for safe and worry-free use | Soft Cover: Comes with a soft and cozy cover for added comfort and insulation | Convenient Design: Red zipper closure on the cover for easy access and secure fit