This is the Universal Throttle Pocket 2 from New Rail Models. Holds Atlas, CVP, Digitrax, Lenz, NCE & MRC Throttles.
Keep Throttles Off Layout Scenery with Throttle Pockets™ During layout operating sessions modelers are always looking for a place to set down their throttles. Universal Throttle Pockets from New Rail Models offer a convenient alternative to leaving throttles on the scenery or trackwork. These durable injection-molded plastic throttle holders attach to layout fascia panels. Can be used with DCC handheld throttles from all major manufacturers including the latest MRC Prodigy handhelds.