Bought these in 02/2022, new.For our single car driveway, 2 were needed. $100+ for each. Wouldn’t recommend cutting in half.My husband used a cement drill to install. It took approximately an hour to complete.We are not under a HOA.We live in a cul de sac so our curb is curved, these worked out fine. Will update if anything new changes. I’m happy Amazon had these available! We couldn’t find these locally…in Hawaii we are limited. These help our lower car to avoid hitting the cement. Prior to having these heavy rubber items, my husband “MacGyver-ed” his own with wood which lasted 2+ years at a time. Cheaper but splintered when worn….