describe: Folding design allows you to change the water cup in seconds. The cup body is foldable and saves space after folding. Easy to carry, compact and stylish, the cup is lightweight and can be put in your bag Leak-proof design, good sealing, no need to worry about water leakage How to use: Lift the folding cup upwards with force, and rotate it horizontally when it reaches the highest height. Because stainless steel has neutralizing force, only by rotating it hard can the cup shape be fixed, so that it can be filled with water and other liquids. Note: The telescopic cup can hold foreign wine and white wine, but cannot hold red wine and carbonated drinks. At the same time, it is best not to package liquids with strong pungent smells. In addition, if you use a telescopic cup to hold hot water, be careful of burning your hands because stainless steel has strong thermal conductivity. Package contents: 1 piece telescopic cup