Coming in at 8″ x 3″, the Bommeland Gunleather Bench Strop is a double-sided pre-loaded leather handheld field strop with a polycarbonate core. The core cannot lose its flat surface, nor can it be broken without using tons of force. This material has zero potential to swell, warp or crack when exposed to moisture. The leather has a very low acid content and is pre-loaded with a black (coarse) buffing compound on one side and a green (fine) buffing compound on the other, designed specifically for honing convex edge knives. Bulk packed.