Access barriers with triangular lock acc. with DIN 3223, swing-back, consists of: 1 stationary post, revolving Square tube 70 x 70 mm, above ground 900 mm 1 removable post, with triangular locking mechanism DIN 3223, square tube 70 x 70 mm, above ground 900 mm 1 ground socket, part.-No. 470.10 Square tube 80 x 80 mm, 500 mm long 1 top bar Square tube 60 x 40 mm with top bar