• Includes a 40-inch balloon with silver numbers 15, straw for inflating, and tape for securing. • Made with high-quality aluminum foil, durable and unbreakable. • Can be filled with helium or air and hung on the wall for more than 8 days without leaking. • Auto-sealing design for easy inflation and deflation. • Suitable for all ages and genders, perfect for birthdays, anniversaries, and celebrations. • Recommendation: do not inflate more than 90% to avoid breakage. Keep away from heat sources and sharp objects.