Prelude Adhesive System is a self-etch bonding system. It has remarkably low 5 micron film thickness which means restoration fit is not affected and will not present a radiolucent layer. Prelude is extremely forgiving in the presence of moisture. Kit Includes: 5 ml Primer, 5 ml Adhesive, 5 ml Dual/Self-Cure Link, 40 Microbrushes, 10 Mixing Wells.