I have stored it in a dark place, away from sunlight. It is approximately 15 cm tall and 10 cm wide. If I remember correctly, I don't think I've ever opened the bag. I have a dog, so there's a chance that some hair might stick to the box or bag. I will be careful when packaging it, but I apologize in advance if any hair gets in. The item was stored in a room where the dog isn't allowed, so please be assured of that. Please refrain from purchasing if you are concerned.