Bollard Embedment Sleeve Product Type Bollard Embedment Sleeve For Use With Calpipe 4 in Dia Posts Includes Hex Key Tamper Resistant Screw Overall Height 12 in Overall Length Not Applicable Overall Width 9 1/4 in Outside Diameter 4 3/4 in Inside Diameter 4 in Color Silver Material Stainless Steel Finish Unfinished Weight 11 lb