Needed a set of smaller diameter (head) cleats to fit my aftermarket wheels with snow tires. The stock lugs probably won't fit most aftermarket wheels because the head is too big. All 20 tabs were easily released by hand. I smeared them with non-stick coating to keep them from sticking. Also, be sure to use a torque wrench. Torque on the Saab is 81 ft-lbs, which isn't much, and you don't want to cut off the nose or the special bushing that comes with it, which is pretty flimsy. I will also post