Video by HERCULES STANDS via YouTube
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The HERCULES Triple Guitar Stand GS432B PLUS accommodates three instruments and features the foldable Auto Grip System (AGS) yokes, Instant Height Adjustment Clutch, Specially Formulated Foam (SFF) padding contacts and the adjustable back rests.
https://herculesstands.com/international/products/fretted-and-bowed-instrument/guitar/multiple-stands/gs432b-plus