Abstract: Marker devices are disclosed in the form of reflex reflectors or the like, for attachment to the spokes of bicycle wheels or the like. In several embodiments, the marker device includes a marker member having seat means for receiving one of the spokes, so that the marker member will be maintained in the desired orientation by the spoke. The marker member is preferably supplied with clamping means for clamping the seat means against the spoke. The length of the marker member is preferably at least twice the spacing between the adjacent spokes, so that the position of the marker member will be stabilized by engagement with the adjacent spokes on both sides of the spoke to which the marker member is secured. The seat means may comprise a groove, formed in the marker member, for receiving the spoke. The seat means may also comprise one or more wall elements on the marker member. In certain embodiments, the clamping means includes a clamping screw which is engageable with the spoke.

Abstract: A triagnular folding reflective flare is disclosed, of the type having a reflective lower member and two reflective side members which are connected together for relative movement between a triangular erected position and a folded position with the side members compactly folded relative to the lower member. A heavy base is movably connected to the lower member for movement between folded and unfolded positions. The base comprises a hollow member with a heavy material retained therein. The weight of the heavy material enhances the stability of the flare. The heavy material is preferably a highly economical material having considerable weight, such as concrete. However, the heavy material may comprise any suitable heavy aggregate mixed with any suitable binder, such as Portland cement, any other suitable mineral cement, an epoxy plastic or various other suitable plastic materials.