TheDock Chain Bollard Barrier Systemscreate a safe environment for both personnel and productsThe steel constructed double chain design adds extra security for doors up to 10'. Unit is designed with a safety yellow finish for clear visibility, and a bolt on chain hook-up enabling a quick installation or removal. Chains are mounted at 21" and 41" high on the bollard and the chain can be cut to size upon request. SeriesDCBB-42includes two (2) bollards, two (2) 127" long chains and one (1) DCBB-B-KIT. Concrete anchor hardware available separately.ModelDCBB-B-KITis for use with existing bollards. Kit includes four (4) mounting brackets, four (4) quick links for chain, one (1) chain post handle and hardware.**It is recommended to order more chain than the length between bollards to allow for slack. Model Image Description * Net Wt.(lbs) DCBB-42-4.5 DOCK CHAIN BARRIER BOLLARD 4.5 DIA Bollard quantity:2 30 DCBB-42-5.5 DOCK CHAIN BARRIER BOLLARD 5.5 DIA Bollard quantity:2 49 DCBB-B-KIT DOCK CHAIN BARRIER BOLLARD CONV HDWR KIT Mounting Bracket Quantity:4 2