A set of brand new red and a used black ERNIE BALL straps, along with brand new, unopened Fender strap blocks. Stored in a smoke-free environment. Guitar Strap Ernie Ball ERNIE BALL POLYPRO STRAPS 4037 Black Strap Polypro Strap Fender Strap Blocks 4-Pack, Black (2) and Red (2) 【Strap Blocks】 ERNIE BALL POLYPRO STRAPS guitar straps. The Polypro strap, loved and trusted by many musicians, is a popular long-selling strap. The main material uses durable, stretch-resistant polypropylene. Also, black leather is used for the hole where the strap pin is attached, achieving high durability. Furthermore, it is equipped with a Delrin material slide adjuster, allowing for instant length adjustment. The wide variety of colors is also attractive. Width: 50mm Shortest length: 960mm Longest length: 1725mm - Brand: ERNIE BALL - Colors: Red, Black - Accessories: Fender Strap Blocks