No Drilling Or Modification Required,These Foot Rails Contain One Openings To Access Front Runner Under Rack Mount Tables,Easily Installs Using The Existing Factory Mounting Points,Contain Installation Instructions As Well As All The Components Needed To Mount The Slimline II Tray To Your Vehicle,All Front Runner Racks Are Backed By A Limited Lifetime Warranty,The Vehicle Specific Foot Rails Have Openings For Storing Compatible Gear Under The Rack Such As Front Runner Tables,This 2570mm/101.2 in. Long Full-Size Slimline II Cargo Roof Rack Kit,Contains The Slimline II Tray/Wind Deflector And 2 Foot Rails To Mount The Slimline II Tray To Your Toyota Sequoia