Level crossing with 2 crossing barriers, powered by 2 separate underfloor-drive units. Slow movement during opening and closing of the barriers. Track filling pieces, ramps and printed traffic signs are attached. Upgradeable with extension set item-No. 5103. For automatic use additional switching-tracks resp. reed contacts item-No. 6840 are required. Double tracks even an electronic relay item-No. 5552 are required. More connectors are available by item-No. 5101 (2 rail version) and 5102 (rail between traction rails). Length of barrier arms: approx. 43 mm. Hint: Suitble power module item-No. 5556 provides suitable sound according to the movement of the barrier arm.