4" Track KitThis 4" track features an industry-standard groove for versatile fishing and paddling gear mounting.Features:Proudly constructed in the USA of black polycarbonateKit Includes: 4" track (1) 8-32 x 1" PH machine screws (4) #8 Nyloc nuts (4) #8 FH washers (4) #8-32 well nuts (4) Specifications: Length: 4 in. Color: Black Fastener: #8 PH Weight: 0.10 lb. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Quick Guide (pdf)