What do you do when you've invented the World's best tax disk holder? Make it better! Knowing you're all busy people, we took the design for our best-selling holder and added an ingenious twist-off back, to make change a disk about as hard and as time consuming as opening a jar of marmalade.. Finished in anodised 'staybrite' aluminium. each holder is supplied with 2 sets (6) of 3M fixing pads and a curved screen spacer which is essential for most cars. Simply twist the back 10 degrees to remove! Easy as that!