{"kind":"club","data":{"name":"WB マッスルバック アイアン","url":"https://golfscale.jp/club/iron/winbird/wb","slug":"HIWB2026001","brand":"ウィンバード","series":"WB","club_type":"アイアン","release_year":"","materials":{"head":"軟鉄 鍛造 ハンドグラインド クロムサテン","face":null},"ladies":false,"specs":[{"number":"3","lie_deg":59.5,"head_weight_g":236,"loft_deg":21},{"number":"4","lie_deg":60,"head_weight_g":243,"loft_deg":24},{"number":"5","lie_deg":60.5,"head_weight_g":250,"loft_deg":27},{"number":"6","lie_deg":61,"head_weight_g":257,"loft_deg":31},{"number":"7","lie_deg":61.5,"head_weight_g":264,"loft_deg":35},{"number":"8","lie_deg":62,"head_weight_g":271,"loft_deg":39},{"number":"9","lie_deg":62.5,"head_weight_g":278,"loft_deg":43},{"number":"PW","lie_deg":63,"head_weight_g":285,"loft_deg":47}],"sources":[{"url":"https://web.archive.org/web/20150913233559/http://www.winbird-golf.com:80/product/iron/wb-iron.html","checked_on":"2026-11-06"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-11-08T04:42:45+00:00","license":{"text":"事実（数値・名称・住所など）は出典 URL つきで引用自由。記事本文・画像は要連絡。","url":"https://golfscale.jp/legal/credits"},"attribution":"出典: ゴルフスケール（golfscale.jp）","source_url":"https://golfscale.jp/club/iron/winbird/wb"}}