1. Compatible Model: The front and rear bump stops are compatible with Wrangler JK 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018, replacing 52060428AB 52060423AB. 2. Quality Material: The bump stop is made of quality polyurethane foam, offering greater hardness and durability. It is shorter, softer, crackresistant, and has a longer lifespan compared to other polymer crash pads. 3. Reliable and Safe: The jounce bumpers feature a diameter of 2.6 inches and a height of 3 inches. Each anticollision block undergoes strict quality testing before leaving the factory, ensuring safety and reliability for a better driving experience. 4. Easy to Install: The bump stops can directly your old anticollision block. Simply jack up the pickup, remove the old hardshell bump stop, and then press the one into place. Installation is quick and convenient, saving you time and money.