Product Name: Horizontal Type Motor Base * Type: Horizontal Type (Suit for 57 Stepper Motor); * Mounting hole Diameter: 38mm; Thread Hole Dia:5.4mm; Size; 68*65*69mm(L*W*H); Thickness: 3mm; * Material: Steel, blDCk plastic spray; * Color: As Picture Shows; Weight: 180g; Package Content: 1 X Motor Base