Outdoor Essentials 116419 Tiffany-Style Serpentine Jade Mission Solar Garden Cap Solar postcap with Tiffany-style serpentine jade mission design Fits nominal 4 by 4 post measuring actual 3.5-Inch by 3.5-Inch Quick and easy installation using garden post and stake (sold separately) Garden postcap has Cedar base Can also be used on mailbox, fence and deck posts