Telescoping, Adjusts 3. 5′ to 8′. Lightweight, durable aluminum is well balanced with maximum strength. Telescoping Boat Hooks have smooth telescoping twist lock with rolled tube edge for ease of use, comfort and maximum strength. Clear satin finish, premium grip. Hooks are permanently attached with unique formed dimple. High tensile anodized aluminum tube resists corrosion. Comfortable non-slip vinyl safety grip.