It is a flat black plastic bridge with sides and the track is already installed in the center of the bridge

This is a Bachmann 45174 HO Scale 6 x 3½ x 2 Gas Station Plasticville Classic Kit

Model Number: A1933

3 mm w x 7

This super-tough 139

Traxxas 2060 Sub-Micro Servo: Revo, Slayer ProductID_11658340 It is a flat blackThis is a Traxxas 2060 Sub Micro Servo: Revo, Slayer. Features: 35 oz in torque Transit time 0. 20 sec 60. Fits in the Left Electronics Box and controls shifting of the 2 speed transmission Includes: One Micro Servo with Standard Connector for the Traxxas Revo Truck Requires: Installing in electronics box, plugging into receiver and connecting Shift Linkage, TRAC5392. Specifications: Ratings such as speed and torque have not been provided by Traxxas.