These are really tough commercially used coffee stencils. They are so easy to use and create a fantastic pattern on top of you coffees, or hot chocolates. Simply shake your chocolate powder over the stencil while holding close to the coffee and you instantly create the desire effect.
They are much larger than most stencils so that you don't make a mess all over the work top. They measure 120mm across and the pattern in the middle will fit an 80mm cup (which is pretty much the standard size coffee cup).
Made from really tough food grade plastic, the material is slightly translucent that allows you to accurately position the pattern over the coffee everytime (this is one big drawback of metal stencils).