This SEPTALINE rubber dam frame, made of stainless steel in the 152mm size, sits around the patient's face to evenly stretch the dam sheet once it has been punched and placed, freeing both of the practitioner's hands for the rest of the procedure. Its fully metal construction makes it a particularly robust instrument, able to withstand intensive use and numerous sterilization cycles without warping or losing its tensioning grip, unlike softer materials that can fatigue over time. A durable choice for practices carrying out a high volume of procedures under isolation, where equipment sturdiness matters most.