The Bresser Messier Duo Motor Set EQ-5 for EXOS2 and MON-2 mounts automates the tracking of your telescope. With separate motors for the RA and DEC axes, it keeps observed celestial objects centered in the eyepiece. The hand controller offers three speeds (1x, 8x, 32x) for relaxed viewing. The set includes both stepper motors with mounting hardware, couplings, a hand controller, and a battery holder for 8 D batteries. Dimensions: 65 x 55 x 54 mm, Weight: 1.4 kg, Color: black.