business vacuum cup set simple style long-term heat preservation meeting gifts

【Insulated Flask Set】Long-lasting insulation and cooling for 24 hours, 316 stainless steel inner, safe and healthy. Leak-proof and anti-scald, portable for travel. Meets outdoor, office, and household water needs, always enjoying warmth. SGS certified, quality assurance. Choose us, add a touch of warmth and peace of mind to your life.