Nothing beats having cold, refreshing water while you're out and about. This innovative Bottle Ice Tray creates 5 cylindrical 1.5 oz ice sticks to fit into narrow-neck reusable and storebought bottle openings, so drinks stay colder longer. The lid seals out odors, and the base keeps ice level to prevent spills in the freezer. Pop an icy cylinder into your favorite water bottle for a refreshing drink on your next adventure. Creates 5 1.5 oz ice cylinders. Trays are dishwasher safe. Rinse occasionally with water and vinegar for best results. Bpa-free and food-safe for safe freezing. Made of silicone and nylon.