M3 pro electric trolley the brand new compact folding m3 pro electric trolley borrows the twin tube frame and three point folding system made popular by the m1 pro and developed to make the folded dimensions over 40 smaller than its s series counterparts boasting the sporty look and eye catching trim of the m series range the m3 pro offers an integrated accessory station and adjustable handle height as well as performance features including lsquolost ballrsquo timer lsquoroundrsquo