Carefree 850001BLK Pioneer Awning End Cap Kit Kit includes end cap and crank mechanism to replace your springs; Purchase the telescoping crank handle separately (not included); It is recommended that springs should be removed by a qualified RV service facility as they are under tension Cranking ensures a nice tight canopy; Worm gear crank assembly automatically locks the roller in place; Super easy to use Anyone can crank the awning in or out with ease