System composed of sectional matrices and reinforced rings for easy and fast construction of perfect, tight, contact points. Also includes triangular silicone tips for tight adjustment and contact points. Matrices ensure comfort of work, shorter modelling time and perfect adaptation in the area of the gingival margin. Matrices do not stick to composites and glass ionomers, and can be sterilised. Retainers and tips are autoclavable. Kit includes Matrices x 100 (Large x 30, Medium x 40, Small x 30), Rings x 2 (Hard and Soft) and Triangular Silicone Tips x 14.