1、Insulation Holes: The soldering insulate station jig has holes around the black insulation to prevent heat transmission. This is an excellent design. 2、Aluminum Alloy Material: The welding jig is made of great aluminum alloy material, fine workmanship, sturdy and wear resistance, corrosion resistance and long service life. 3、Regulated Connection: The plug slot can be extended up to 7mm and it can help to control your model better. 4、Robust and Practical: This soldering insulate station jig is made of aluminum alloy material, superb craftsmanship, sturdy and practical, and can be suitable for a long term under the correct operation. 5、Wide Compatibility: The welding jig is widely compatible for T, for XT60, for XT90, for mini T, etc. 2.0, 3.5 and 4.0mm banana plug connectors and other models.