The Gruv Gear DuoStrap Neo is used in very good condition. There are some scuff marks from use. See the photos for details. It includes four screws for strap adjustment.

It is an ergonomic, dual-shoulder instrument strap designed to distribute the weight of heavy guitars and basses evenly across both shoulders. 

Key Features and Design

• Dual-Shoulder Support: Features a patent-pending weight distribution design that mimics the premium leather Signature counterpart but uses animal-friendly synthetic and vegan materials.
• Pain Reduction: Endorsed by medical professionals like chiropractor Dr. Randall Kertz to significantly reduce neck, back, and shoulder strain during long playing sessions.
• Material & Width: Constructed from all-black, soft-rolled neoprene padding with a wide 3.25-inch profile for optimal load support.
• Adjustability: Standard lengths adjust roughly from 33" to 44" (or up to 42.5" depending on the specific regional run), with an available extra-long tail strap extension that increases total usable length up to 51" or 56".
• Orientation & Compatibility: Works equally well for left- and right-handed musicians; ideal for double-cut electric guitars and basses (with optional adapters available for single-cut instruments).