Add another crossbar to your Sherpa Animas Cab Rack for more room to mount gear - Max Trax, extra storage, or anything else you want up top. It bolts on using the same hardware and hole pattern as your existing bars, so there&';s no drilling and no guesswork. Sized to match the Animas Cab Rack&';s 48" bar. Included: (1) Aluminum crossbar, 1" x 2" profile, black anodized finish (4) 1/4-20" x 1" stainless socket button bolts (4) 1/4" stainless washers