2004-2010 Toyota Sienna Roof Racks

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

SKU	Name	USD
8-00-8670-BK	EXR 'WEEKENDER-8670' Black Crossbars - (2) 40" Solid bars, 1.76" above Rails	469.11
8-00-8776-BK	EXR 'WEEKENDER-8776' Black Crossbars - (2) 51" Click-In bars, 1.76" above Rails	743.19
8-00-5671-BK	EXR 'CAMPER-5671' Black Crossbars - (3) 40" Solid bars, 1.76" above Rails	828.71
8-00-8776-RD	EXR 'WEEKENDER-8776' Red Crossbars - (2) 51" Click-In bars, 1.76" above Rails	853.11
8-00-5777-BK	EXR 'CAMPER-5777' Black Crossbars - (3) 51" Click-In bars, 1.76" above Rails	1076.39
8-00-5672-BK	EXR 'OVERLANDER-5672' Black Crossbars - (4) 40" Solid bars, 1.76" above Rails	1117.07
8-00-5777-RD	EXR 'CAMPER-5777' Red Crossbars - (3) 51" Click-In bars, 1.76" above Rails	1241.27
8-00-2778-BK	EXR 'OVERLANDER-2778' Black Crossbars - (4) 51" Click-In bars, 1.76" above Rails	1447.31
8-00-2778-RD	EXR 'OVERLANDER-2778' Red Crossbars - (4) 51" Click-In bars, 1.76" above Rails	1667.15