The 2 piece Extender set adds 1/8" (3mm) or 3/16" (4.5mm) to your Sweet Stencil Holder to accommodate a thicker cookie.
Sweet Stencil Holder sold separately and required to use the extender.
To add 1/8" to stencil height, remove top frame from Sweet Stencil holder and attach the 1/8” Extender frame. Place stencil on top of Extender frame and attach the top frame of the holder to secure stencil.
To add additional height, place stencil on top of both Sweet Stencil holder frames and secure with the 1/8” Extender frame. (If cookie does not make contact with stencil, place clear lifter square under cookie)