42"H steel pipe bollards for underground installations, the heavy duty steel welded construction makes these traffic bollards ideal for protecting personnel, racking and machinery indoors or out. Topped with a removable plastic cap, bollards can be filled with concrete for reinforcement. Slide through lag anchors, assembly requires. High visibility yellow powder coat finish. This style is designed to be installed underground or poured into place in fresh concrete. When installed into cement or ground, max. height is 38". , Lot of 1