Check the listing for details. Caliber Lowpro Grip Glides 9" Extension Set 4pcs 13382. Condition: New. Listed at 53.95 USD. Genuine Caliber Products: Caliber's mission is to be an industry leader in trailer accessories by creating products that are of the highest quality, precision engineered and the most innovative of their kind while still being competitively priced. Product Details: Reduce the friction and wear between carbides and trailer surfaces to make loading and unloading easier, safer and more efficient Low-profile design allows trailers to be used for multiple purposes Available in three different sizes: 6", 9" and 11.5" Best glide option for multi-purpose use; will work for any enclosed trailer door or open/exposed trailer and deck surfaces Lower channel depth provides a higher profile for engagement points for increased traction Additional mounting locations provide increased versatility Offer a number of ski stance variances based on glide size –​ 6" up to 10", 9" up to 15", 11.5" up to 20" Will not chip, crack, break or wear out Made in the U.S.A. About Us: LeClare Powersports is a small-town Parts and Accessories store in Springfield, MO. Our low overhead allows us to offer better prices than the 'Big Boys', but our owner-operated store allows us to give our customers the great customer service they deserve. We only sell brand new, high quality GENUINE name-brand aftermarket parts...no junk, no knock offs and no "seconds". Buy with confidence!