1、 26 Balloons: Noticed that many people don't include balloons in their "one" 1st birthday box, only provide clear boxes, but we've included 26 mixed color balloons (10inch) to finish putting. You can easily create a beautiful party backdrop with our 1st birthday decoration kit. 2、 Perfect for Boy's 1st Birthday: Our blue one-box set is the perfect party photography backdrop decoration for a baby boy's 1st birthday decoration. Three clear cubes spell out a letter to represent this joyous milestone in your child's life. Great for adding a little background to your newborn's first photo. 3、 3Pcs 1st Birthday Balloon Boxes: 3 18" x 18" x 18" Baby Girl & Boy 1st Birthday Clear Boxes with 3 White Letters "O" "N" "E" as your baby's first birthday party decorations or photo props. 4、 Safe and Sturdy Material: Our 1st birthday decoration box is made of high-quality cardstock, which is strong and wear-resistant, not easy to deform or damage, and harmless to pregnant women and children. Make your baby shower decoration for 1st boy today! 5、 Easy to Assemble: One of our balloon boxes is pre-designed, they are very easy to assemble and disassemble, you only need two minutes to get a beautiful balloon box that will make your party glam. 3*Balloon Box;3*Letters;26*Balloons; Material: white cardboard, environmentally friendly PS filmBox size: 11.8* 11.8* 11.8inchBalloon size: 10inchBalloon Color: Mixed ColorsRecommended age: 1-year-old babySuitable Occasion: Birthday Party, Prom, etc.