Top Cervical Wax - Dental Special Wax - Excellent Margin Wax - Red - Compact Cylinder 42-45 gr perfect marginal seal for inlays, onlays and crowns elasticity & flexibility to produce sharp clean & accurate margins It produces easily visable margin edges Non-rebounding and tension-free special waxes are excellent for use with the Top Dip Wax and Top Sculpturing Wax