X-Treme Duty Stanchion, For Use With Mfr. No. 50002-100, Compatible Line Chain, Overall Height 46 1/2 in, Post Diameter 3 in, Base Diameter 21 in, Fillable Yes, Post Material Polyethylene, Base Type 2 gal Water Bladder for Ballast, Post Color Black, Base Color Black, Includes Base, Extension Piece, Handle Top, Product Type Stanchion, Indoor/Outdoor Usage Indoor, Outdoor, Post Finish Matte, Base Material HDPE, Base Finish Matte, Color Black, Resistance Properties UV