The FISCHER Cantilever Arm FCA category, listed under Inst Systems FUS, provides a selection of cantilever arms in multiple lengths and finishes. Available models include FCA 21‑200, FCA 21‑300, FCA 21‑450, FCA 41‑300, FCA 41‑300 HDG, FCA 41‑600, and the GCL FCA 41 x 450 (2.5 mm) HDG.