This tray is specially designed to work with "Decal", consist of 2 part plastic tray which makes "lifting" decal is easy.
The inner tray has a grated bottom, to allow water to drain through when you lift it out; the lifter (it looks like a comb) will lift up an individual decal and allow you to slide it into place on the model.

Can be put on a smooth curve without any wrinkle, it is PVC masking
tape with flexibility.
Available in three types of 2,3,5mm.