Purchased in April 2025. My cat didn't use it much. It was 1888 yen on Rakuten. Approximate size: 3.5cm high, 16.3cm wide at the widest point. It's a bit more cream-colored than in the photos. The material is listed as "pottery, ceramic." Microwave use was not specified. We don't use a microwave. Photo 3 is the underside, and photo 4 is a screenshot of the Rakuten page. Price negotiations are not accepted. Thank you. We have a cat at home. We will be careful to package it to prevent cat hair from getting in, but please reconsider if you have allergies or are sensitive.