<b>Roof rack cross bars - Specifications:</b><br> ·Rack Dimension: 34” x 3.1” x 4.1”<br> ·Soft Rack Straps Dimension: 1.5” x 90.6”<br> ·Complimentary Straps Dimension: 1.0” x 141.7”<br> ·Load Capacity: 165.3lbs<br><br> <b>Universal roof rack cross bars - How to Use:</b><br> 1.Unpack and roll out flat. Release strap from buckle.<br> 2.Open vehicle doors and place cross bars roof rack on top.<br> Circle strap through vehicle interior and thread through buckle on end of rack to tighten as shown.<br> Tie off excess strap and close all doors.(Tips:Clean your car roof before place the rack)<br> 3.Thread straps through the loops of the rack,and wrap the strap around your equipments and secure them enough on suv roof rack.<br><br> <b>kayak roof rack for car without rails - Warnning:</b><br> 1.Don' t use universal cross bars for roof rack in heavy rain for long time,the water may leak into your car through straps.<br> 2.Recommend using the kayak stern ratchet tie down to secure again when carrying the long things,such as kayak, UP. And dont drive over 60 mile/h.<br>