Cinetics SP1 Skateplate Camera Dolly and Suction Cup Base retractable rigid dolly frame that adjusts to define a straight or curved dolly move easy-to-read illustrations located on the face of the Skate Plate line up CineSkates and miniSkates for straight rolls or curves and the imprinted marking system helps you to set up the perfect alignment every time. works with other Cinetics products like CineSkates, CineSquid, miniSquid, and miniSkates Skate Plate has a retractable quick-set-up and collapses for extra portability when combined with either the JOBY Gorilla Pod Focus or SLR-Zoom the Skate Plate + JOBY combo provides an even greater range of height and angles for dynamic shots and video