Metal ball (roughly 8 lbs, 3 inches in diameter) with side slot and chain that screws into the ball. It was found at a psych asylum that was abandoned roughly 40 years

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Metal ball (roughly 8 lbs, 3 inches in diameter) with side slot and chain that screws into the ball. It was found at a psych asylum that was abandoned roughly 40 years ago. : r/whatisthisthing

Fixed internal thread stainless steel plug, used for teaching experiments, mechanical accessories, hardware accessories, DIY, etc. Material: 304

Solid 304 Stainless Steel with Threaded Steel Ball, M3 Ball Head Screw, Diameter: 5mm-40mm, semi-Threaded Steel Ball, Blind Hole Steel

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