The NiSi JetMag Pro 100mm Holder Kit is a high-performance magnetic filter holder designed for creators who want to use 100mm wide Graduated Nd (GND) filters in combination with the JetMag Pro magnetic filter system. This kit includes the 100mm holder and a 95MAG magnetic adapter ring, delivering a seamless workflow for combining square and circular filters on set or in the field.Engineered for speed and precision, the holder magnetically connects directly to a mounted JetMag Pro circular filter (not the adapter ring) and locks securely by rotating the holder to align the JetMag Pro filter handles with the white lines. The holder can lock and also rotate 360-degrees for precise GND filter positioning.The holder is compatible with all standard 100mm square filters and is ideal for managing complex lighting, such as balancing bright skies and dark foregrounds in landscape photography or controlling exposure transitions in video production.