Golf swing perfector - medium size adjustable Perfect Connextion

Great Mother’s/ Father’s Day or husband gift. To work on full swing / chips/ bunker / putting. “The essential link between feeling and learning the perfect golf swing- the power triangle - Carl Rabito PGA master teacher. Medium fits biceps 12 to 14” (fits most men and some women). Item is in very good condition. Packaging is in fair condition. This very useful item is discontinued and no longer available typically was selling from between 100$ to a 111$ US dollars.