This is a pen case that extends and closes. It's designed to store brushes so they don't break. Since it's not new, please check the remaining amount and condition in the photos and understand before purchasing. For oil paint-related items, see #yukikooilpaint. Please feel free to inquire about combined purchases or requests. I hope it will be useful for you! A fluorescent green cylindrical plastic product, with protrusions inside, perfect for art and hobbies. - Color: Fluorescent Green - Shape: Cylindrical - Material: Plastic - Features: With protrusions inside Thank you for viewing.