URL：https://static.vecteezy.com/system/resources/previews/017/190/440/original/number-6-metallic-gold-number-balloon-airfoil-filled-number-illustration-isolated-on-transparent-background-design-element-for-festive-party-decoration-free-png.png
掲載元：https://www.vecteezy.com/png/17190440-number-6-metallic-gold-number-balloon-airfoil-filled-number-illustration-isolated-on-transparent-background-design-element-for-festive-party-decoration
