Thank you for viewing. This is a water bottle (large) that also functions as a brush washer from Gekkoso Art Supplies. Made of polyethylene Capacity: 200cc Size: 7.7cm x 13.8cm x 2.8cm I bought this about 20 years ago simply because it's square but not sharp, has a moderate thickness, and above all, the trademark "horn calling friends" is cute, and I've kept it stored away ever since. I've put water in it about twice. I wiped it with alcohol-based wet wipes. I will take waterproof measures (though it may not be necessary) and ship it via Yu-Packet Post Mini. Instant purchase is OK☆ Feel free to ask any questions you may have. Thank you very much (˶•ᴗ•˶) Listed on 2025/11/06