Leak Proof 40oz Straw Tumbler with Handle - Ultimate Shake Test & Wholesale Showcase

Are you looking for a truly leak proof 40oz straw tumbler for your wholesale business? In this video, we put our premium stainless steel tumbler to the test! Watch as we demonstrate: ✅ The superior sealing technology of our spill-proof lid. ✅ 360° shake test – NO leaks even with the straw! ✅ Vacuum insulation that keeps drinks cold for 24+ hours. ✅ Custom tumbler options including laser logo and color coatings. As a professional tumbler manufacturer, Ohway Flask supports OEM tumblers and bulk drinkware orders with low MOQ and fast shipping. 📧 Wholesale Inquiry: [email protected] #WholesaleTumblers #LeakProofTumbler #40ozTumblerWithHandle #BulkDrinkware #CustomTumblers #TumblerManufacturer