FasTen's Single 2x2 Leveling Block is a single leveling block that can be used alone or as a replacement part for FasTen's 10-Pack, 2x2 Leveling Blocks with T-Handle (Camco item 44512). FasTen Leveling Blocks allow you to stack interlocking blocks to the desired height for safe and easy RV leveling. One block adds a full inch to the stack height. This block is compatible with Camco leveling blocks and can be used with single wheels, double wheels, hydraulic jacks, tongue jacks, stabilizer jacks, fifth wheel jacks and tandem axles. This item is compatible with FasTen's convenient carrying handle, which pulls up to carry and twists down to secure multiple leveling blocks together for storage. Product measures 8 ½-inches x 8 ½-inches x 1-inch. Note: the stack height should not exceed 4 ½-inches. Made in the USA.