Rainbow Foil Engraving Art Fun Travel Pads Princess Fantasy Theme - 5" x 5" Boards - 4/ Pack - 1 Engraving Tool ROYAL LANGNICKEL-Rainbow Engraving Art. These images are not only fun to look at but way more fun to create! Each kit contains engraving tool and four 5x5in pre-printed boards. Various themes are available. Recommended for children ages 8 and up. WARNING: Choking hazard-sharp objects. Not for children under 3 years. Imported.