1. Roin-S extension clamp mount adapter only for DJI Ronin-S stabilizer. 2. Made of metal alloy, solid and durable to provide security for mounting accessories. 3. 1/4 screw hole enables you to mount a monitor, microphone or LED video light, also can be used with magic arm. 4. Easy to set and remove. 5. Connecting to Smartphone, tablet, Crystalsky monitor, real-time displays the shooting pictures.