{"product_id":"willies-custom-brass-willies-trombone-mouthpiece-massong-series-alto-gp-finish-5am","title":"willie's Custom Brass Willie's Trombone Mouthpiece MASSONG Series Alto GP Finish (5AM)","description":"For alto by Michael Masson. For those who want to share the rim with tenor. Optimized for the Thyne Universal model alto trombone Supervisor: Michael Masson GP finish Rim diameter 25.50 (mm) Throat diameter 6.00 (mm) Approximate size of other companies Size: Back 5E \n\u003cbr\u003e\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e","brand":"Mega Shop Japan","offers":[{"title":"Default","offer_id":49162078257472,"sku":"B08762W8PR","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/2584\/0704\/files\/61vfN7cSbNL._AC_US1200.jpg?v=1719153402","url":"https:\/\/megashopjapan.com\/products\/willies-custom-brass-willies-trombone-mouthpiece-massong-series-alto-gp-finish-5am","provider":"Mega Shop Japan","version":"1.0","type":"link"}