不必人懂
參考網址https://www.facebook.com/groups/twfountainpen/permalink/668238546704732/
闔蓋筆長145mm/蓋長64mm/筆身含四號尖長130mm/筆身最粗14mm/握位粗10mm/筆蓋粗15mm/天冠粗17mm
握位同赤鳳,利於互相通用,還在談要做同方向刷紋,讓整體感覺一致