Includes magnets to hold containers

but has a feed wire to the crossing pre-installed for use with switches on point motors

They feature plastic construction

Model Number: 5581

The Trainz SKU for this item is P11590222

LGB 5030/1 DB Semaphore Arm ProductNumber2_338820 Includes magnets to hold containersThis semaphore arm is red on one side and black on the other. It measures approximately 4 3 8 inches long. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: LGB Model Number: 5030 1 MSRP: $12. 99 Scale Era: G Scale Model Type: Accessories The Trainz SKU for this item is P11552156. Trainz Product Id: 11552156