Retractable Stainless Steel Bollard - 4" x 36" Drop-Down Security Post

Retractable Stainless Steel Bollard - 4" x 36" Manual Drop-Down Heavy-Duty Manual Drop-Down Security Post with Reflective Strip Block traffic when you need to. Let it through when you don't. This 4" retractable bollard drops flat into an in-ground sleeve for vehicle access, then locks upright for full perimeter security. SS316 marine-grade stainless steel handles coastal salt air, pressure washing, and wet conditions without rusting or staining. Standing 36 inches above grade when locked, the bollard retracts fully into its 42" deep in-ground sleeve when access is needed. The integrated reflective strip keeps it visible after dark. Polished stainless finish stays clean without painting or maintenance. Key Features SS316 marine-grade post. Handles salt, humidity, and pressure washing Manual drop-down operation. No power, no hydraulics, no maintenance SS304 in-ground sleeve. Protects the mechanism underground Reflective strip included. Visible at night without additional lighting Polished finish. Architectural look that never needs repainting Performance Benefits Coastal and wet environments. SS316 won't rust where others fail Controlled access. Let authorized vehicles through, then lock it back Impact resistant when upright. Same protection as a fixed bollard Zero maintenance. No painting, no rust treatment, no moving parts to service Ideal for: Gated entries. Emergency access lanes. Anywhere you need security that gets out of the way on demand. No Tariffs. No Surprises. - This bollard is stocked in the U.S. with no added import tariffs or hidden fees. The price you see is the price you pay - stable, transparent, and ready to ship. Specifications Part Number BMRSS436 Diameter 4" Above Ground Height 36" Total Depth 42.5" Material SS316 Stainless Steel Sleeve Material SS304 Stainless Steel Finish Polished with Reflective Strip Reflective Strip Yes