I recently purchased the DPAccessories Black Lug Nuts for my car and I must say I am quite impressed. The closed end bulge acorn style is a perfect fit for my wheels and adds a touch of elegance to my car's appearance. The 7/16-20 thread size and cone seat ensure that the lug nuts securely fasten to my wheels, providing me with peace of mind while driving. The 13/16" hex provides ample space for my wrench to grip onto, making it easy for me to change my wheels when I need to. The set of 16 lug nuts was also very convenient, as I was able to replace all of my old lug nuts at once. The only downside was that they were a bit difficult to install at first, but after a few tries, I was able to get them on easily. Overall, I would definitely recommend the DPAccessories Black Lug Nuts to anyone in need of a stylish and secure way to keep their wheels in place.