?<strong>Features:</strong> <br>Twice as original sliding distance£¬ conceptionally retractable. <br>52cm track£¬ 104cm actual sliding distance£¬ load up to 8kg. <br>Super smooth transporting belt and track design. <br>Qualified aviation aluminum alloy£¬ CNC technics£¬ preciser and more stable. <br>1/4" and 3/8" screws built-in the top for connecting with camera or ball-head. <br>1/4" and 3/8" thread holes built-in the bottom for connecting with tripod. <br>Built-in gradienter helps you find the balance quickly. <br>Many ball-bearings design£¬ use hexagon wrench to adjust sliding tightness. <br><br><strong>Specifications:</strong> <br>Material: Aluminum Alloy <br>Length: 52cm / 20.5in <br>Height: 6cm / 2.4in <br>Sliding Distance: 104 / 41in <br>Loading: 8Kg / 17.6Lbs <br>Item Weight 1.5Kg / 3.3Lbs <br>Package Size: 55 * 13 * 9cm / 21.7 * 5.1 * 3.5in <br>Package Weight: 2.144Kg / 4.7Lbs <br><br><strong>Package List:</strong> <br>1 * Sliding body <br>1 * Carrying bag <br>1 * Hexagon wrench