US Weight ChainBoss Delineator Post &ndash; Fillable Base (2-Pack) Safely direct traffic away from hazards with the high visibility of this delineator Unique reflective tape positioning helps motorists and pedestrians stay alert Durable, scratch-resistant high density polyethylene material is UV-resistant Great for outdoor use with no smudge, no-rust, and easy to clean material Each base can be user filled with gravel or sand