Put on Onglow zippers will takes you only few minutes!
Remove the shoelaces and place the zipper in the middle of the shoe. Eyelets for laces in the shoe and the zipper should be at the same height.
Now tie zipper to the shoe by shoelaces, starting from the bottom. It will look as if you are laced two shoes at the same time.
You can apply different lacing techniques, as well as the traditional lacing.
At the end tie tips to knot in order to lock the laces on the appropriate length. From this point you can forget that, in general you have laces.