Abstract: A swing assembly may include a base having a center portion and two side portions on opposite sides of the center portion, two supports attached to the base, each support being attached to a respective side portion so that the base may be hung by the supports. Each support may include two spaced elongated members. Two handles may be movably attached to the supports, each handle including a body and two pairs of openings extending through the body. Each pair of openings may receive one of the elongated members in a spiral configuration so that the respective handle body may be slid up or down the elongated members to a desired height relative to the base.

Abstract: An improved zip line trolley allowing a rider control of his or her speed while traversing along a suspended cable (8) as seen in FIGS. 1A and 1B. The trolley comprises front and rear pulleys (44F) and (44R) conjoined via pulley housing (16) with left and right horizontal handles (10L) and (10R) attached to vertical shaft (12). Front and rear hand brake levers (20F) and (20R) are mounted onto left and right horizontal handles (10L) and (10R). When front and rear hand brake levers (20F) and (20R) are squeezed by the rider, they create a constricting force on front left and right calipers (32FL) and (32FR) along with rear left and right calipers (32RL) and (32RR) of FIGS. 2A and 3A. Thus, friction is applied to front and rear pulleys (44F) and (44R) via front left and right brake pads (34FL) and (34FR) along with rear left and right brake pads (34RL) and (34RR).