At the opposite and proximal end 18, there is provided an elongated projection 20 as illustrated, provided for receiving the distal end of an elongated pole 22, preferably formed of aluminum provided with a protective coating, the pole 22 having a length of approximately 6 to 8 feet, e.g. 7 feet, six inches in one preferred embodiment, and 6 and 8 feet in two other preferred embodiments.