Dear buyer, due to the nature of the material of the balloon skin itself, there will be about a 3% defect rate. It is very difficult for us to check when shipping. It is normal for there to be 1-2 less balloons in one package (50), as it is weighed by machine and not as accurate as manual counting. If you mind, please be cautious when purchasing! 【 Regarding Returns and Exchanges 】 If there are any quality issues, please take photos and send them to our customer service for confirmation before returning or exchanging. Generally, the integrity rate of a pack of balloons is about 98%. A few leaks are a normal phenomenon. Customers who return or exchange goods for non-quality issues need to bear the shipping cost. Custom-made products are special and cannot be returned or exchanged. Please be informed. 【 Regarding Color Difference 】 Due to issues such as monitor shooting, color difference is inevitable. We can only try our best to adjust it. Please refer to the actual item received