The Chinook Standard Carbon Mast Extension is probably the most highly regarded extension on the market.

• Ultra Lightweight.
• Redesigned with stronger than ever reinforced side walls.
• Large brass rollers significantly reduce friction and give easy downhauling.
• Fully adjustable, easy to use slim line snap-on collar.
• Large finger friendly metal release button - with a good positive action.
• Highly visible and durable height adjustment markings.
• High grip clam cleat and quality downhaul rope.