High Mast Winch Gear Box 2.25" CD. Open Type Single Gear Winch For 250Kg. (Suitable for 12 mtr. High Mast) 2.25" CD. Open Type Double Drum Winch For 250Kg. (Suitable for 12.5 mtr. High Mast) 2.25" CD. Winch Gear Box For Lifting Capacity 250Kg. (Suitable for 12.5 mtr. High Mast) 2.25" CD. Winch Gear Box For Lifting Capacity 350Kg. (Suitable for 16 mtr. High Mast) 3" CD. Winch Gear Box For Lifting Capacity 500Kg. (Suitable for 20 mtr. High Mast) 2.25" CD. Double Gear Double Drum Winch For Lifting Capacity 600Kg. with Rope Adjustment System ( Suitable for 20 mtr. High Mast) 3.5" CD. Winch Gear Box For Lifting Capacity 750Kg. (Suitable for 30 mtr. High Mast) 3" CD. Double Gear Double Drum Winch For Lifting Capacity 750Kg. with Rope Adjustment System (Suitable for 30 mtr. High Mast) 3.5" CD. Double Gear Double Drum Winch For Lifting Capacity 1500Kg. with Rope Adjustment System ( Suitable for 30 mtr. High Mast) 4" CD. Winch Gear Box For Lifting Capacity 1000Kg. (Suitable for 40/60 mtr. High Mast) 5" CD. Winch Gear Box For Lifting Capacity 2500Kg. ( Suitable for 60 mtr. High Mast)