Specification Brand : Matthews Fan Company BulletPoint1 : Black-sliding leg BulletPoint2 : Non reflective BulletPoint3 : Extension and Retractable: Our pantograph studio ceiling rail system offers adjustable length ranging from 43cm to 200cm, providing the flexibility to meet your supplementary light needs at any position. With a maximum load capacity of 15kg, you can easily hang and adjust your lighting equipment without worrying about weight limitations. BulletPoint4 : Installation and Service: To ensure a hassle-free experience, we provide detailed installation instructions in PDF format along with the option of accessing installation videos. In case you encounter any issues during installation or usage, our dedicated customer service team is readily available to assist you. Simply contact us, and we will promptly resolve any concerns you may have. Invest in our pantograph studio ceiling rail system today and enjoy effortless lighting control for your photography needs. BulletPoint5 : Package List: 97" Single Track (fixed tracks) × 2pcs; 97" Double Track (movable tracks)× 2pcs; 100*100MM Fix Plate × 4pcs; Single Pulley × 4pcs; Double Pulley × 4pcs; Cable Pulley × 4pcs; Pantograph × 4pcs; Security Rope × 4pcs. BulletPoint6 : BulletPoint7 : BulletPoint8 : Color : black ConnectivityTechnology : Bluetooth ExternallyAssignedProductIdentifier1 : 768476074689 ExternallyAssignedProductIdentifier2 : 0768476074689 HardwareInterface : bluetooth IncludedComponents : Shade included IncludedComponents1 : 1.5M Single Track (fixed tracks) IncludedComponents2 : 1.5M Double Track (movable tracks) IncludedComponents3 : Fix Plate IncludedComponents4 : Pulley IncludedComponents5 : Pantograph ItemName : Matthews Hollywood 40" Double Riser Spring Loaded, Sliding Leg, w/ Grip Head and Arm - Black ItemPackageDimensions_Height : 4 inches ItemPackageDimensions_Length : 55 inches ItemPackageDimensions_Width : 22 inches ItemPackageQuantity : 1 ItemTypeKeyword : photographic-lighting-booms-and-stands Manufacturer : Matthews ModelNumber : B756040 NumberOfItems : 1 PartNumber : B756040 Pattern : Letter Printed ProductDescription : 97" Single Track (fixed tracks) ×2pcs; 97" Double Track (movable tracks) ×2pcs; 100*100MM Fix Plate×4pcs; Single Pulley×4pcs; Double Pulley×4pcs; Cable Pulley×4pcs; Pantograph×4pcs; Security Rope×4pcs.