Upright column guard : to prevent damage to base of frame with 4 steel anchors (sold separately). Single entry frame safety barriers : to prevent ends of single entry runs with 6 steel anchors (sold separately).Double entry frame safety barriers : to protect ends of double entry runs with 6 steel anchors (sold separately). Upright protection : prevents damage to the base of the frames. Fixed to the floor with 3 anchor bolts (sold separately)