Key features

• •Vacuum Insulation Technology: Double wall vacuum and three-layer mug bottom design was made it excellent in heat preservation, hot for up to at least 12 hours+, ice cold up to 24 hours+. Sweat proof provide sweat-free from the outside, no matter what you drink.
• •100% 304 18/8 Stainless Steel: 20 ounce tumbler made be food grade 100% 304 18/8 stainless steel, so they're puncture-and rust-resistant, make the mug safe enough for direct contact with food. FDA APPROVED, No metal taste, 100% BPA FREE, Lead Free, Non-Toxic & Safe, easy wash, more durable than other ordinary glass cup.
• •Excellent Sealing Performance: With a widened lid ( BPA-free) and thickened seal ring make it spill-proof, leak proof and seal. make it excellent in heat preservation.
• •Save Your Money: What item are you get: 1 20 oz softball tumbler, 1 adjustable cup cleaning brush, 2 Splash Proof Lids, 2 stainless steel straw, 2 Straws Silicone Tips, 1 straw cleaning brush. No need to spend double or triple the amount on the 'brand name' , only half the price.
• •100% Money Back Guarantee: Yoelike every tumbler was tested to guarantee its high vacuum degree. Full refund or replacement is available if you are not satisfied with our tumbler, you will get the refund quickly. Please contact us on Amazon if you have any question.