Food grade material, can be used after passing water; Large-caliber, open combination design, fashionable sense of movement, suitable for sports and fitness enthusiasts, easy to clean at any time after use, safe to use; It can be used repeatedly and will not volatilize toxic substances; Single layer, no heat preservation, although it can hold boiling water (-20C0 to 120C0), it is not recommended to hold overheated liquid, overheated liquid may be hot, and the material principle will also affect the tightness due to high temperature. It can be placed in a standard freezer or microwave oven, avoid alkaline or acidic substances, avoid fire sources and sharp utensils. These pricing is via sea shipment.