Helinox Ridgeline Featherlite Twist Lock Trekking Poles Twist Lock is a proven locking mechanism which keeps weight to a minimum Engineered with DAC's proprietary aluminum alloy, TH72M, which provides superior strength to weight characteristics TH72M aluminum alloy is exclusive to Helinox trekking poles, which results in incredibly lightweight poles DAC Green Anodizing involves no nitric or phosphoric acid and greatly reduces water consumption by using recycled water for rinsing Max Length: 53". Collapsed Length: 24". Weight: 13oz. Basket Style: Light trekking. Number of sections: 3. Grip type: Foam long. Tip: Carbide