Dutton-Lainson Dutton Lainson 6400 Swivel Tongue Jack 6in. Wheel. Wheel comes in a size that measures to 6 inches. Designed for quick and simple installation with existing equipment. Features of Dutton-Lainson 22440 Dutton Lainson 6400 Swivel Tongue Jack 6in. Wheel Replacement wheel Wheel Size: 6 inches Wheel for swivel tongue jack Quick and easy to install Package Contents: Dutton-Lainson 22440 Dutton Lainson 6400 Swivel Tongue Jack 6in. Wheel Dutton-Lainson 22440: Dutton Lainson 6400 Swivel Tongue Jack 6in. Wheel