PROAIM ZEAL 48&rdquo;/122cm Camera Video Slider with 20kg/44lb Load Capacity (P-ZL-S4) DSLR Track Dolly Rail Slider System | Professional Camcorder Slider Tripod Compatible A TRUE SLIDER that guides the viewer through your story, with real SILKY-SMOOTH FOOTAGE High grade aluminum constructed zeal slider has payload capacity of 20kg Extruded & Wider Rail Design provides smooth track and stable base; Adjustable feet and foldable legs ensures flexibility 4 ball bearings for smooth & inaudible movements; lock system for static shots Includes Storage Bag; 100% Customer Satisfaction, Buy with Confidence Non-conventional extruded rail design<span class="a-text-bold"> provides smooth shots.</span> Wide track to provide <span class="a-text-bold">stable base</span> to camera. The <span class="a-text-bold">Camera Platform </span>with<span class="a-text-bold"> 4 rubber ball bearings </span>allows<span class="a-text-bold"> smooth movement </span>&amp;<span class="a-text-bold"> eliminate unnecessary sound.</span> Ha<span class="a-text-bold">s Lock system </span>to take<span class="a-text-bold"> static shots.</span> <span class="a-text-bold">Adjustable feet </span>for easy adjustment on any surface with <span class="a-text-bold">height adjustment</span> feature. Proaim Zeal 4ft Camera Slider Storage Bag Construction: High-Grade Aluminum Slider Length: 48/122cm Load Capacity: 20kg/44lbs Camera Mounting Screws: 1/4&#039;&#039;-20 &amp; 3/8&#034;-16 Tripod Mounting Threads: 1/4&#039;&#039;-20 &amp; 3/8&#034;-16 Slider Weight: 2.10kg/4.6lb