MS TELESCOPIC CHANNEL (ZINC) FEATURES: Full Extension Ball Bearing SlideFinish: Zinc Plated/Black Powder CoatedWeight Capacity: 35 kgs set80,000 times cycle tested CODE NO. DTC-101-10" BK/ZK DTC-101-12" BK/ZK DTC-101-14" BK/ZK DTC-101-16" BK/ZK DTC-101-18" BK/ZK DTC-101-20" BK/ZK DTC-101-22" BK/ZK