Wide Mouth J Bar Rack, Easier To Load And Unload. The product consists of an adjustable non-slip foam pad and a rubber base. The high-quality material selection ensures that it is non-slip, waterproof and sun-resistant. The J-Bar Rack can be used to transport all kinds of water sports equipment, such as kayaks, canoes, surfboards, snowboards, windsurfing boards and various small sailboats. The rack is made of steel pipe with a thickness of about 1.5mm. 8" long straps with 4 in total to support outdoor gear such as kayaks that are 36" wide and 75 lbs. Finished with a premium glossy gloss black paint finish that will stand up to harsh weather and harsh environments. Remember that crossbars thicker than 1" or wider than 2.5" will not fit. It will fit most factory and aftermarket installed crossbars such as oval, square and flat, except round rails (old rails are within 2.5" wide and 1" thick). You will receive 2 sets of brackets and required mounting accessories, instructions included. Through the splicing of the reduced diameter pipe and other pipes, and the use of pre-drilled holes on the pipe body, it is more firm and reliable after installation.