Disposable Flask By Sharkskiznzz - 4 Black + Funnel + 16oz USA Flask SHARKSKINZZ DISPOSABLE FLASK 4 PACK WITH 2 FUNNELS AND BONUS 16oz FLASK! FDA approved materials! Reusable - Durable, no transfer of taste/odor, easy to clean. Hand wash or top rack dishwasher safe BEST DEAL for DISPOSABLE FLASkS ON AMAZON! SHARKSKIZZ 100% Customer Satisfaction guarantee