Abstract: A swing training apparatus includes an upper line from an upper assembly to a housing of a lower assembly. A first line extendable from the housing may be connected to a sporting implement. A second line extendable from the housing may be connected to the upper line. A first spool, second spool, lever, and pawl are located within the housing. The rotation of the first spool permits the extension of the first line. The pawl is biased to prevent the rotation of the first spool. Tension in the second line cause the rotation of the second spool, causing the lever to engage a portion on the pawl to disengage the pawl and permit extension of the first line. The first and second spools, lever, and pawl are configured to permit the extension of the first line at the proper “release” point during the swing of a sporting implement.

Abstract: A speed detection signal sensor system for use with a vehicle. The system includes a signal sensing device positioned in a housing assembly. The housing assembly includes a reflective portion such as a mirror. The sensing device is positioned between the reflective portion and the housing. A sensor is positioned relative to the housing assembly and the reflective portion for sensing a speed detection signal which is directed towards the vehicle either from a forward position or a rearward position relative to the vehicle. A signal sensing indicator may be positioned relative to the housing assembly and generally in the reflective portion. Alternatively, the signal sensing indicator may be positioned externally of the housing assembly for attachment in a convenient location. The signal sensing indicator provides indicia that a speed detecting signal has been sensed by the detecting device.