step motor can be 5 wire or 6 wire out. voltage:12vdc, phases:2phases gear ratio:1:85 dc resistance:130+-70% We have 4 types sizes of step motor. They are 24byj, 28byj, and 35byj. For 35byj, there are two type height of motor.Please find drawing of 35byj which height is 27mm as follows:If more data is needed, welcome to contact us! 35BYJ step motor