Motion Clear Class II appliance offers the ultimate in aesthetic treatments, quickly establishing a Class I platform with even the most difficult or complex Class II cases. Articulating ball and socket for controlled molar rotation and uprighting. Smooth, low-profile, rounded arm for patient comfort. Advanced medical grade polymer provides excellent strength and durability. Contoured stainless steel base to fit patient tooth anatomy. Simple, direct-bond surface pads. Exceptional aesthetics guaranteed not to stain or discolour. Left & Right Sets x 20 (16mm x 2, 18mm x 3, 20mm x 2, 25mm x 6, 27mm x 4 and 28mm x 3).