Flexible wedges with a diamond-shaped cut-out in the tip to allow it to collapse during insertion causing minimal pressure. Once through the embrasure, wedge will spring open to create a tight seal and stop the wedge from backing out. Excellent marginal adaptation while maintaining a strong separation. Less invasive technique. Eliminates uncontrolled flow of excess composite and minimises clean-up after composite has been cured. Long diamond wedge is approximately 2mm longer than the original wedge, and is intended to be used when working on wider molars.