Use the DJI R Lens-Fastening Strap to support and fix camera and lens for a more stable shooting experience. Various lenses are supported. The lens-fastening strap is highly adjustable by rotating the knob on the strap. SuperSmooth requires a lens-fastening strap to function properly. The lens-fastening strap can also be used with Ronin-S and Ronin-SC; however, SuperSmooth is not supported in either model.