URL：https://thumb9.shutterstock.com/thumb_large/69545/1455958298/stock-photo-bright-shiny-green-glass-number-seven-in-a-d-illustration-with-a-shining-glass-or-plastic-effect-1455958298.jpg
掲載元：https://www.goodfreephotos.com/other-photos/numbers/bevel-glass-number-7.png.php
