Their LensCoat LensSack Pro Jr series is their "U" shaped LensSack with a removable mounting plate. The mounting plate is made of lightweight aircraft-grade aluminum with a 3/8"-16 mounting screw allowing you to mount a gimbal or ball head. The mounting plate can be removed allowing your LensSack Pro Jr to be used as a standard bean bag camera/lens support platform. The LensSack Pro Jr provides excellent stability for cameras with lenses up to 500mm. Whether you are shooting from the ground, slick surfaces, railings, car doors or safari vehicle, the LensSack Pro Jr will provide a reliable steadfast platform.
All of LensCoat LensSacks are constructed with the same heavy-duty water-resistant Codura as LensCoat xpandable Long Lens bags and TravelHood. The LensSack Pro comes to you unfilled and its 2 high quality YKK locking zipper prevents leaks while easily allowing you to add the fill of your choice.