Eazypower 73613 Flex-A-Wrench Flexible Shaft with 3/8" Square Female by 3/8" Square Male Drive, 11" Flexes to 90 degrees for hard to reac h places Outer surface does not rotate making hand control safer Rated 13 lb/ft for durability Flexes to 90 degrees for hard to reach places Outer surface does not rotate making hand control safer Rated 13 lb/ft for durability