A finger mounted instrument cleaner of the type having an elongated semi-circumferential protective body to desirably wrap around a finger. The third oil passage is provided on the outer periphery side of the drive sprocket and in a position where it does not interfere with the operation of a chain. The capture and control is for a limited time, such as a predetermined time that is generally short compared to the overall game duration. A container adapted to be secured to the side walls of the rear compartment of a truck is also provided. Each insulating boot may include a tubular sidewall having a progressively increasing diameter to an open outer end thereof, a removable boot closure cap for removable positioning in the open outer end of the tubular sidewall, and an integrally molded tether connecting the removable boot closure cap to the tubular sidewall. Different levels of service can be selected using different codes and a plurality of multiplexers located in the error detection and encoding front end of the core reverse channel process sequence.