For large LCD recorders and GPS units up to 14 lbs. This heavy-duty, swivel top automatically locks into 24 positions. Patented lever-release mechanism. Base unit comes fully assembled with stainless steel springs and screws. Made of molded, highly durable nylon. Fits most 7, 8 and 10 sonar/GPS units. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.