Dock Edge Solar Sentinel 35". Each Solar Sentinel incorporates stylish durable solar lighting on an attractive broad-based tapered pillar to illuminate docking areas. The Solar Sentinel also has the capability of acting as a Life Ring station. The optional Stainless Steel "J" hook can securely keep a Life Ring at the ready and under the convenient illumination of the Solar Sentinel by day or through the darkest hours of night. Includes solar light tapered pillar and rechargeable batteries. Specifications for Dock Edge 35in Solar Sentinel: Manufacturer: Dock Edge Color: Black Package Contents: Dock Edge 35in Solar Sentinel Dock Edge 96-252-F: Solar Sentinel 35"