Abstract: The curtain comprises a sheet of flexible opaque material having a plurality of holes and attached to a winding-up shaft carried by end supports. A semicylindrical casing is parallelly arranged and partially surrounds the winding-up shaft to permit a hand grip element to be rotated, when mounted, from one side to the other of the casing according to requirements.

Abstract: A grip for tennis rackets and the like has an elongated shaft with a longitudinal hole extending axially from the free end and a plurality of grooves on the outer surface. A tubular reinforcing member provided with a plurality of perforations is disposed within the hole. The shaft is provided with a plurality of passages which extend radially from the longitudinal hole to the outer surface, with passages provided on the free end of the shaft. A protective cap is attached to the free end of the shaft, and a plurality of protrusions on the inner surface of the cap space the cap from the shaft to define a ventilation chamber. A central opening in the cap is aligned with the longitudinal hole, and the perforations in the reinforcing member are in fluid communication with the hole and the grooves on the outer surface to provide complete ventilation of the grip.