Belt-mounted smartphone pouch. The pouch is from LOWRYS FARM (I think), with a smartphone pocket on the front and a thin pocket on the back. The metal fittings were added later, and are titanium, costing about 2400 yen. https://www.amazon.co.jp/dp/B09KV7HGW1?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1 It's about 15cm deep and 9cm wide. It's in excellent condition as it's only been used a few times. I think it's very stylish, so please consider it. I am not accepting price negotiations, please wait for irregular price reductions.