{"kind":"club","data":{"name":"BB4","url":"https://golfscale.jp/club/driver/progress/bb4","slug":"HDPS2026001","brand":"プログレス","series":"BB4","club_type":"ドライバー","release_year":"","materials":{"head":"8-111 Ti 精密鋳造（2pcs）","face":"6-2222S αβ Ti 鍛造"},"ladies":false,"specs":[{"number":"1","lie_deg":59,"head_weight_g":197,"volume_cc":455,"loft_deg":10.5}],"sources":[{"url":"https://progress-golf.co.jp/bb4.html","checked_on":"2026-11-06"}]},"_meta":{"site":"ゴルフスケール","generated_at":"2026-11-07T17:01:04+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/driver/progress/bb4"}}