Designed from the start to fit pens as large as a Montblanc 149, pictured here with three modern pens for size reference, the TWSBI Diamond 540, the Lamy AL-Star, and a Noodler's Ahab. All pens fit comfortably in the case. 24 pen case in black leather. Features wide dual elastic straps to keep the pens separated. 7-1/4 inches wide by 9 inches tall.