Layer truss system 1.Convenient use for hanging audio in the dispaly 2.Good for audition Layer truss system for hanging Speakers in big concert:Specfication: ItemSpecificationUnitWeight(kg) PillarDiameter*Height*Thickness48×1,000x3mmpc4.3548×1,500x3mmpc6.5348×2,000x3mmpc8.748×2,500xmmpc10.8848×3,000x3mmpc13.05 Horizontal pipeDiameter*Length*Thickness48×914x2mmpc448×1,570x2mmpc5.848×1,829x2mmpc7. ...