E tech anodised red alloy hexagonal interior windshield tax disc holder the e tech alloy tax disc holder has been designed to be both functional and stylish the creative hexagonal design is unusual and produced using precision cnc milling equipment to ensure that all components fit together perfectly simple to fit to the windscreen using ultra strong self adhesive pads to guarantee a secure fit we have also made sure that installing and removing the tax disc is a quick and simple job without us