This is a simple holder for the DT400 series of throttles by Digitrax. Designed to make it easy to pick up or insert the throttle while also keeping access to the buttons so it can be used as a stationary control. It also has a small pocket for holding the battery when not in use as these throttles do not have on/off switches. Modeled with .100" diameter holes allowing for easy mounting with small countersunk screws (not included). Printed in the UK from environmentally friendly plant-based PLA filament.