Product name: happy birthday letter balloon.

 [product size] (error of 1-3)

 [product materials] imported aluminum film material.

 [product features]

   1. The material of the balloon is made of high quality aluminum film, and the color of the balloon is uniform and high quality.

       It's a must-have accessory for the day!                   

   2. The balloon can be used repeatedly, and it can be used for recycling.

birthday