This dedicated tool is made from solid billet aluminum with a red anodized finish. Designed to insert into wiper bezel stem nut used for assembly or disassembly without damaging nut. Our design allows for the use of a 7/8 or 22mm wrench if needed. Caution! Do not over-tighten! This may damage the tool and the bezel. Use firm pressure pushing the tool into the bezel while loosening or tightening with wrench. Hand tightening in most cases should be sufficient.