Ram Mount Universal X-Grip IV Large Phone/Phablet Holder with 1-Inch Ball - Non-Retail Packaging - Black High strength composite and stainless steel construction. Spring loaded holder expands and contracts for perfect fit of your device. Rubber coated tips will hold device firm and stable. Compatible and interchangeable with a wide range of popular RAM Mounting products. The "U" in the part number reflects the product is packaged in a poly bag.