Home » Products » Hip » Signature Evolve Cemented Femoral Stem Signature Evolve Cemented Femoral Stem Highly polished, high Nitrogen Stainless Steel ISO5832-9 dual tapered cemented femoral stem. Double taper wedge stem designed for 2-3mm cement mantle. 12/14 taper connection Collarless neck Evolve Cement Restrictor included