Pro-Bed 2000 is a Matrix Stabilized Microsphere Composite derived from a 2 part epoxy. Approximately 85% by volume of the mixed epoxy is made up of high quality additives that tremendously improve the qualities of epoxy. These additives,(microspheres, carbon fibers and Fiberglas™) eliminate shrinkage and adds to the compressive and flexural strength as well as improve the adhesive capabilities. This kit is brown. Each kit contains: 1 oz jar resin; 1 oz jar of curing agent; 1small jar of mold release; 1 application brush; mixing sticks; and modeling clay and complete instructions.