A connector system facilitates the connection of a first tree trunk to a second tree trunk of an artificial tree system, and further protects one or more ends of a trunk when, for example, the artificial tree system is being shipped or stored. The connector system comprises a sleeve. The sleeve comprises a cylindrical shaped body. The outer of the body has a uniform cylindrical shape. The interior of the sleeve has different diameters at its top and bottom. The interior includes a notch or shoulder. The shoulder is in proximity to the top end of the sleeve. The sleeve further comprises a cutout for assisting with connecting and securing the trunks together.