Features and Benefits:�Extremely slim design with a soft, ergonomic grip zone for easy work even in very confined spaces�Safe socket lock via push button, convenient direction change thanks to the reversing lever�Plastic coating protects surfaces from damage�This ALLIGATOR straight TR 543 nickel plated valve is particulary suitable for light metal alloy rims. They fit 9.7 mm ( 0.382" to 0.394") valve rim holes and measure 2.31 " in length.