1/16" Super Lightweight Unbreakable Black Plastic: This black plastic base shaper will not crack or break. It has a nice textured side and a smooth side. All corners and edges are rounded and designer ready so it doesn't damage your liner. Colored Acrylic Skin: The primary color you choose will be seen on the acrylic side. If you chose to add felt along with the color, the felt color you choose will be seen on the back side. For example if you choose a blue primary with a black felt. The acrylic top will look blue and the bottom will be black felt. All corners and edges are rounded and designer ready so it doesn't damage your liner. All Felt - Both Sides: Made of All Felt With a Hard Core. All corners and edges are rounded and designer ready so it doesn't damage your liner. All Custom Made to fit your bag in the USA