This is a single piece of acrylic surround frame for making molds. The internal measures 100mm x 100mm with curved edge. It is 8mm thick acrylic, giving plenty of depth for creating your molds. The external measurements of this frame are approximately 118mm x 118mm with curved edges.
***Please note - The image includes liquid silicone and mold making blanks for display purposes only. This listing is just for the clear acrylic mold making frame.