P&H Master Class Carbon Fiber Double Bass Bow 4/4 Size Save BIG when you buy today! Based on the ground-breaking re-hair technology developed for their fiberglass bow, the P&amp;H Master Class Carbon Fiber Double Bass Bow is a sure-fire upgrade for the advancing double bassist Made with a well-balanced carbon fiber stick, the French-style bow features faux whalebone lapping and leatherette grip (Replacement hair hanks available separately) Based on the ground-breaking re-hair technology developed for their fiberglass bow, the P&amp;H Master Class Carbon Fiber Double Bass Bow is a sure-fire upgrade for the advancing double bassist