Abstract: A system and kit to modify a wheelbarrow to a single-wheeled wheelbarrow or a double-wheeled wheelbarrow configuration. The kit has a pair of axles, a pair of wheels, and a sleeve. To form a single-wheeled wheelbarrow, an axle is inserted through a first axle bracket, through a wheel, and then through a second axle bracket. A pin is inserted through a hole at the tip of the axle. To form a double-wheeled wheeled barrow, a first axle is inserted through a first wheel and then through a first axle bracket. A second axle is inserted through a second wheel and then through a second axle bracket. A sleeve holds the ends of both the axles. Pins are utilized for locking the axles with the corresponding axle brackets or sleeve. In the single-wheeled configuration the second wheel, second axle, and sleeve can be stored on the wheelbarrow.