SCREW BALL-SLINKY AND BALL Screw Ball...An optical illusion... is a mobile that appears to "screw up" and then like magic appears to "screw down." It is battery operated and includes a DC reversing motor. It is also black light sensitive!Runs for days on 2 "AA" alkaline batteries. Looks great under normal light...even better and glows under a black light! Ball appears to go up...and then down in a "screwing action." Makes a great and unique gift forthe person who has everything. The Manufacturer has DISCONTINUED this item.
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