Garrison, Composi Tight 3D Fusion Ultra adaptive Wedges , 100/PK #FXK4-FXBLSuperior Adaptability Only Composi Tight 3D Fusion wedges have Soft Face technology. A soft, rubberized material is fused to the firm plastic core. The wedge gently molds itself to root irregularities as you insert it providing an unsurpassed seal. Forget Back Out Soft retentive fins along the gingival edges fold in smoothly during wedge insertion. These spring back when clear of the interproximal space firmly locking Composi Tight 3D Fusion in place.