Outdoor Essentials 116420 Tiffany-Style Serpentine Jade Diamond Garden Cap Postcap with Tiffany-style serpentine jade diamond 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