2000-2004 Mercury Mountaineer 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	474.23
8-00-8760-BK	EXR 'WEEKENDER-8760' Black Crossbars - (2) 40" Click-In bars, 2.46" above Rails	714.27
8-00-5661-BK	EXR 'CAMPER-5661' Black Crossbars - (3) 40" Solid bars, 2.46" above Rails	837.59
8-00-8760-RD	EXR 'WEEKENDER-8760' Red Crossbars - (2) 40" Click-In bars, 2.46" above Rails	841.47
8-00-5761-BK	EXR 'CAMPER-5761' Black Crossbars - (3) 40" Click-In bars, 2.46" above Rails	1034.21
8-00-5662-BK	EXR 'OVERLANDER-5662' Black Crossbars - (4) 40" Solid bars, 2.46" above Rails	1125.95
8-00-5761-RD	EXR 'CAMPER-5761' Red Crossbars - (3) 40" Click-In bars, 2.46" above Rails	1225.01
8-00-5762-BK	EXR 'OVERLANDER-5762' Black Crossbars - (4) 40" Click-In bars, 2.46" above Rails	1388.11
8-00-5762-RD	EXR 'OVERLANDER-5762' Red Crossbars - (4) 40" Click-In bars, 2.46" above Rails	1642.51