This is a Brand New Dunlop DVP5 (X) 8 - Volume and Expression pedal.
It's their mid-length Volume/Expression pedal.
It's 8" x 3-5/8".
It's small enough to fit on smaller pedalboards, but it feels comfortable under your foot.
It's a Mono Input and Output Volume pedal.
It's got a Tuner Out, and
a 1/4" Expression jack.