- 4-CORE is an extruded track system that works with any 1/4x20 hex bolt or Quick release clamps
 - Accessory 4-CORE aluminum rails that bridge the uprights of the XRS Bed Cross Rail Kits
 - Easy bolt-on installation with mounting hardware included
 - Rails can be cut down to desired length
 - Textured black powder coat finish
 - Works with XRS Bed Cross Rail Kits
 
Dimensions:
- Rail length: 49 3/4"
 
In the box:
- (2) Side rail