Plastic threaded tubular handle for forming dumbbell, has threads identical at its ends, where handle is screwed to necks of bottles and presents walls of diameter of cylindrical depth reaching upto base which defines neck of one bottle

摘要

The handle has two threads identical at its ends corresponding to threads of plastic bottles (b1, b2), where the handle has reduced diameter. The handle is screwed to the necks of the bottles and presents internal walls of diameter of cylindrical depth of 10 and 13 millimeter reaching upto a base which defines the neck (b3) of one bottle, where the diameter is equal to 30 millimeter. The thickness of the walls is between 2.5 and 3 millimeters, and length between the ends is 105 and 120 millimeters. Holes (t1) are threaded to the ends to align and fix the bottles with the handle.