A basketball system may include a support structure that is sized and configured to support a basketball goal above a playing surface. Each of the detector modules includes sensor elements for detection of the intensity of incident X-ray radiation. Headsets will have either direct wire connections to the digital radio receiver, or infra-red links or RF links, which can allow the user to roam significant distances from the radio without the encumbrance of a wire link. To release or loosen the watch strap, the user can apply pressure to disengage the locking mechanism. The rider bars are attached to a portion of the screening portion andor the reinforcement portion by button type snug fitting. The cutting unit frame has two opposing side parts extending parallel to the cutting shaft and two fronting parts extending transversely to the side parts and the cutting shaft.