Lifetime Guarantee from Manufacturer with Full Refund if Not Satisfied WARM TIPS: 1: New hip flask needs few hours in an open area to get rid of the adhesive odorbecause compared to others double-sided adhesive, we use special adhesive to prevent from shedding; 2: How to maintain hip flask:Rinse well for the first time using, no severe dropping, no high heat, and no acid liquid for long term, best for strong alcohol; 3: Use Instruction: Clean thoroughly for first time use; rinse before use it again; better not let any liquid stay in it more than three day,clean and dry thoroughly when not use GENNISSY is professional home supplies brand, we are factory over 10 years, make high quality food grade stainless steel hip flask & cup and Etc., we have complete and scientific quality management system so that can provide you satisfied products and shopping experence.we welcome wholesale & OEM please call (708)247-3029.