Double Wall Vacuum Insulated Tumbler

40oz Heavy‑Duty Automotive‑Focused Vacuum Tumbler, Dual‑Access With Straw for Holiday & Institutional Promotional Merchandise Product Overview Many extra‑large capacity insulated drinkware suffer two major drawbacks for bulk buyers: overly wide outer diameter cannot slot into mainstream automotive cup slots, and simple single‑function lids fail to satisfy mixed hot‑and‑cold drinking requirements for long road trips. Furthermore, most product copy only targets corporate clients, ignoring institutional procurement needs such as school rewards and multi‑festival seasonal gift planning. This Double Wall Vacuum Cup adopts electrolytic precision‑polished inner tank and double‑wall vacuum barrier to sustain consistent thermal performance for hot and iced beverages. Weighing 680g and equipped with independent straw assembly alongside dual‑access lid mechanism, this Large Capacity Stainless Tumbler supports spray painting, silk‑screen imprinting, laser engraving and 3D embossed decoration…

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