2PCS Stepper Motor Drivers This 2" eyepiece features a

This 2" eyepiece features a M57 male thread when unscrewing a threaded eyepiece cap

the basic electric and mechanical knowledge are required

it would be very safe if you insert few diode inside wires or use fool proof connectors

The buyer can wire and play them directly in few minutes out of the box if you have had a 20~24V DC power supply or a 12V battery with a DC-DC converter (contact us if you have any question)

2PCS Stepper Motor Drivers This 2" eyepiece features aWe refund "$4. 0 shipping fee" if you order Goto Kit or stainless gears at the same time. The drivers are high quality, less vibration and extremely quietness. Right ( Kimbrough JB542C) Entire Metal Case 1 200 Micro Steppers ( 1. 8 degree , 200 full steps motors) or 1 400 Micro Steppers ( 0. 9 degree , 400 full steps motors) Left ( DM556H ) Metal Plastic Case 1 256 Micro Steppers ( 1. 8 degree , 200 full steps motors) 1 512 Micro Steppers ( 0. 9