Rid your composite restorations of voids and open margins! Compo-Dots Composite Condensing Dots are tiny, non-stick foam sponges perfectly sized to condense composites into Class I, II and III preps. Elastic memory provides an ideal compressive force and prevents “draw-back” of composite materials upon removal. 100 disposable blue dots per bag. Large Compo-Dots for Class I and large Class II preps.