Why Do You Choose WAYTJYFC ?WAYTJYFC will always provide the best product,pre and after service.We stand behind all our products 100%.Strict QC and assured quality. If for any reason you are not satisfied,please give us an opportunity to improve your experience by contacting us through "Your Orders" tab in your Amazon account.We will always be here for you.Warm Tips:1.Do not expose foil balloons to extreme heat or they can burst.2.Due to the special nature of the balloon, we can not open the balloon check. 3.The damage rate is 0.5%.Please contact us if you receive our balloon found to leak or damaged.You will receive a no questions asked 100% money-back refund.Common Question and Answer:①How to us aluminum foil balloons?1.Find the Self-sealing valve.2.Use air pump or straw to inflate them.Blow air into the balloons must be slow,the available pump charge to 90%,then straw gas blowing,easy to control,so as not to break.If there are 2 layers of aluminum foil sticky situation, must stop inflating,The 2 layer of aluminum foil and then inflated,or easy to damage.②.Can 40 inch purple number balloons floating？Yes,you just need to buy a helium tank by yourself or go to the party store and fill the balloon with 90% helium.③.Can number mylar balloon reusable?Yes,can be reused,use long straw to deflated balloons after party end.④.What should i do if when receive a damaged balloon?Please temporarily find a tape to stick to the broken hole when urgent,and contact us for replacement or 100% money-back refund.