The Steele Rubber Products 1-3/16" Bulb Seal features a rigid "C" channel section that slides onto the track located on the wiper seal. The unique hourglass design helps prevent side-flop when compressed protecting your RV from extreme weather and pests. Ideal for 2010 Big Horn by Heartland 5th wheel. 1-3/16"H x 1-3/16"W x 15'L. Protects RV from extreme weather & pests Ideal for 2010 Big Horn 5th Wheel by Heartland Measures 1-3/16""H x 1-3/16""W x 15'L | Steele Rubber Products 1-3/16" Bulb Seal with Channel, 15' long