Our take:  These rail cover sets prevent scratches, dents and other cosmetic damage that may affect the functionality of your rails.  With a total of 4 pairs of rails (from standard to small), you can easily set up your own configuration and mount accessories while still keeping your rails protected.  This eight-piece set is constructed out of polymer and has a textured surface for a nonslip grip and is compatible with nearly any Weaver or Picatinny rail segment.

Features:
- Durable polymer construction
- Prevents scratches & dents
- 4 pairs of various sizes
- Compatible with 20mm rails

Package includes:  2X 15-slot rail covers, 2X 11-slot rail covers, 2X 9-slot rail covers, 2X 7-slot covers

Package weight: 2 lb