CANNED DRINKS:You can travel with canned drinks without worrying about spilling. This is very convenient for you to use the product, and it will not take up a lot of space. This is simple and compact, and it is very convenient LONG SERVICE LIFE:The product has a long service life, you can reuse it, just clean it and it can simply be stuck on another tank. This saves a lot of time for efforts, and it also eliminates the possibility of harmful insects crawling into the drink COST-EFFECTIVE:This product is very cost-effective and can save you money because it will flatten , so there is no need to throw away other carbonated drinks. So it is relatively environmentally friendly, and has relatively little pollution to the environment MANY COLORS :There are many colors of bottle top caps, and everyone can choose a color. This design is very intimate and can help you identify your cans from other bottles. So that it won't be confused with other people's cans