
Stainless Steel Tumbler with Smart Lid and LED Screen for Coffee Tea Travel Mug Eco Friendly Drinkware Wholesale Bulk Items Customization. Smart LED Screen: Displays real-time water temperature for safe drinking convenience. Double Wall Insulation: Vacuum double-layer design keeps beverages hot or cold for extended periods. Leak-Proof Design: Screw-on flip-up lid prevents accidental opening and ensures spill-free transport. Premium Material: Constructed from durable 304/201 stainless steel for health and longevity. Full Customization: Supports custom designs, samples, and minor modifications for unique branding. High Capacity: 420ml volume provides ample hydration for daily travel and outdoor activities. Eco-Friendly: Reusable stainless steel construction reduces single-use plastic waste. Bulk Wholesale: Optimized for bulk orders with efficient carton packing (50 pcs/CTN).