SWIT GA-PT30P | Precise Positioning Pantograph hinge (for hook), max 23kg load, 3m length, no hook. ---~2 months LeadTime if no stock High-strength aviation aluminum Pantograph for hook (for rail track is another SKU)Strong hanging load (3Kg-23Kg)0.6m - 3m expansion length9 steps counter balance adjustStay in any position with precisionProvide cable organizer on rear sideConnect with hook by screw boltConnect with studio light by screw bolt