This is an awesome bullet point. For use on 4" cove base, this economically priced nozzle dispenses 11 beads (thick or thin) of adhesive in a 2-3/4" spread. The nozzle and neck lock together to prevent accidental separation. Tongue and groove edge construction and internal dams prevent side leakage. Removable screws allow nozzle to be opened for cleaning. Two-piece yellow plastic construction.