A bowl made by reusing old railroad ties (square timbers placed under train tracks to support the tracks). Hard hardwood is used for the sleepers, and the sleepers that have finished working on the railway are separated by grade and reused to take advantage of their texture, strength, and antiseptic properties. The sleeper bowl has a removable borosilicate glass bowl inside, making it easy to use as a pet food bowl. No.113210 * Size : approx. ø7.48" x H3.14" * Material : Wood, Borosilicate Glass About the glass bowl: [Microwave Oven / Dishwasher/Dish Dryer × / Oven ×] Sudden temperature changes may cause cracks or damage, so please avoid rapid heating or cooling. About the wood bowl: [Microwave oven × / Dishwasher/dish dryer × / Oven ×] There are individual differences because the texture of natural wood, including cracks and knots, is utilized as is.