2009-2013 Subaru Forester Roof Racks

What's the difference between Solid vs Click-In Crossbars?

SKU	Name	USD
8-00-8660-BK	EXR 'WEEKENDER-8660' Black Crossbars - (2) 40" Solid bars, 2.46" above Rails	505.45
8-00-8760-BK	EXR 'WEEKENDER-8760' Black Crossbars - (2) 40" Click-In bars, 2.46" above Rails	636.8
8-00-8760-RD	EXR 'WEEKENDER-8760' Red Crossbars - (2) 40" Click-In bars, 2.46" above Rails	716.5
8-00-5661-BK	EXR 'CAMPER-5661' Black Crossbars - (3) 40" Solid bars, 2.46" above Rails	843.68
8-00-5761-BK	EXR 'CAMPER-5761' Black Crossbars - (3) 40" Click-In bars, 2.46" above Rails	938.96
8-00-5761-RD	EXR 'CAMPER-5761' Red Crossbars - (3) 40" Click-In bars, 2.46" above Rails	1058.51