These are resin-made chopstick rests. The flowers inside are stickers, featuring different floral patterns. The part where you place the chopsticks is acrylic, so it's safe. As these are handmade, there may be some air bubbles. Please consider purchasing only if you understand and appreciate handmade items. Please refrain from purchasing if you are looking for a perfect item or are overly concerned about minor imperfections. When using, please wipe off any dirt or gently hand wash. Please be careful around the starfish, etc. As they are sensitive to heat, please avoid using a dishwasher.