Category: Automotive Accessories and Parts Product Review: CURT 45310 Class 4 Trailer Hitch Ball Mount The CURT 45310 Class 4 Trailer Hitch Ball Mount is a high-quality product that fits perfectly on my truck. It has a weight capacity of 10,000 lbs GTW and it's designed to fit a 2-inch receiver. The mount has a 1-1/4-inch ball hole and a 2-inch drop with a 1-inch rise. The construction of the mount is very sturdy and well made, which gives me confidence that it will hold up well under heavy loads. It's also easy to install and doesn't require any special tools or expertise. The ball hole is designed for maximum compatibility with different types of trailers, making it a versatile option for anyone looking for a reliable trailer hitch mount. One thing I appreciate about this product is that it comes with a hitch pin and locking mechanism to ensure secure connection to the receiver. This makes it easy to tow heavy loads without worrying about them coming loose or falling off. The ball hole is also designed to be removable, which allows for easy maintenance and cleaning. Overall, I'm very satisfied with my purchase of the CURT 45310 Class 4 Trailer Hitch Ball Mount. It's a well-designed product that meets all of my needs and exceeds my expectations in terms of quality and performance.