Adds 3/4 inch front end ride height to 2007-2025 wrangler/gladiator (2-4 door). Set includes 2 pieces. Height is 3/4 inch. Inner diameter is 2.5". Outer diameter is 5". Install between vehicle frame and rubber spring isolator (on top of spring). Install time is 2-4 hours (jack and wrenches are required). Made from the toughest available semi rigid urethane to absorb impacts and pressure. 5 year warranty from date of purchase. (Replacement spacer provided to original purchaser if the spacer fails while installed as advised on vehicle suspension.)