Whip for pony or other small tanks. An essential device for LIGHT-DUTY cleaning inside scuba tanks when tumbling is not needed, but deposits like flash rust or aluminum Bayerite should be removed. Minor contaminants in large cylinders which will not fit the tumbler machine can also be whipped out. The whip is a flexible "broom" consisting of strands of a space-age plastic coated with a durable abrasive and crimped onto an aluminum rod. The whip can be spun by any 3/8-electric drill. NOTE: To prevent injury to the operator and /or whip, drill power MUST BE OFF when inserting or removing the whip from a tank! Also, DO NOT store the whip in any manner which folds or kinks the strands; subsequent strand fracture may occur.