The clay stuff is so so easy to use and it makes such a difference...!!

It is basically a bar of soap.... You apply the detailer spray provided as a base over the area you want to cover.. (pannel by pannel) then use the clay bar over the damp surface and feel it pick up all the grim and bits that are in the paint...then wipe off the area you have done... then apply either a wax or a polish.... simples...

Tiller