Silicone tubing has made significant strides in the medical device market over the last five years. From surgical instrumentation to implantable drug-delivery systems, silicone tubing is methodically replacing tubing made from more- traditional plastics and thermoplastics such as polytetrafluoroethylene (PTFE), polyetheretherketone (PEEK), and nonplastics such as urethanes. Medical device designers are drawn to silicone tubing for a variety of reasons, including biocompatibility and ease of manufacture relative to plastic. In addition, silicone often offers flexibility in design that does not sacrifice quality or durability.