【Authentic】 ERNIE BALL 4037 Guitar Strap Black POLYPRO STRAP BLACK Polypro Strap Brand: - A super standard guitar strap, the ERNIE BALL / 4037 POLYPRO STRAPS Black color, loved by many musicians including Eric Clapton! This strap allows for instant length adjustment with a sliding adjuster made of Delrin material! *Please refrain from purchasing if you are sensitive to imperfections, as this is a used item and may have slight wear and tear on the holes. *We strive for prompt service, but please understand that if the item sells out on another site, we may not be able to fulfill your order.