They are metal and measure approximately 4 1/2 inches in height

Model Number: 5-1182

Model Number: 35-75051

Delaware & Hudson scale RF-16 Sharknose non-powered B-unit diesel #1216-B

Acme TB17 CTI Electronics RFID Reader Network PCB Circuit Board ProductID_12171624 They are metal and measureCheck the photos for a detailed look at this item. Condition: Excellent (C 7) Operational Status: Functional Original Box: No Manufacturer: Acme Model Number: TB17 Category 1: Parts Category 2: Control & Electrical We are unable to provide parts lookup service or fitment assistance. The Trainz SKU for this item is P12556198. Trainz Product Id: 12556198