The light passes beautifully through the glass because it's angled, not round. Hole size: Approximately Φ3 to 4mm Each piece is made individually. Air bubbles may be present. Although cleaned, mold release agent may remain. Thank you for your understanding. Photographed in natural light. The color may appear different depending on your device. Combined shipping with other items is -100 yen. The shipping method may be changed from Yu-Yu Mercari Bin to Raku-Raku Mercari Bin. You can search with #ShintonboTama.