Konova Camera Slider Dolly K3 100cm (39.4 Inch) Track Aluminum solid rail smooth slide for Camera, Gopro, Mobile Phone, DSLR, Payloads up to 49bs (22kg) with Bag High quality made of aluminum professional camera slider, high payload to support heavy duty camera system. Removable and foldable legs allow the slider to be put in an included carrier for portability. Multiple 1/4" and 3/8" screw holes on both ends and middle for various mounting options. Two chrome coated shafts in the rail for rust protection and make slider more smooth with 4 roller bearings. Delivery time is 2-3 business days, free shipping