This is a Marukan bird scale. I used it once after purchasing it, but it wasn't tall enough for my cockatiel, so I'm selling it. Perch diameter is approximately 1.5cm. I think it's good for small birds, such as budgies, Java sparrows, and lovebirds. I've disposed of the box and instructions. I will include batteries. I plan to wrap it in bubble wrap and send it in a Mercari A4 bubble wrap envelope. I regularly have my bird tested for infectious diseases, and there are no health problems with my beloved bird. Thank you. - Type: Digital scale - Material: Plastic, wood - Function: Weight measurement - Size: Approximately 15cm in diameter - Accessories: Perch - Design: Simple and cute Thank you for looking.