COE Stainless Steel Perforated Impression Tray, #S4, Medium, Upper, Full-Arch, 1/Pkg, 264041

COE Stainless Steel Perforated Impression Trays are a long-trusted choice among dental schools and clinicians worldwide. The #S4 tray is a medium, upper, full-arch design made of rigid yet bendable stainless steel with welded rimlock borders that allow pressure build-up, and a perforated surface that aids mechanical retention of impression material. Each tray is individually packaged and should be used with tray adhesive to prevent separation during impression removal.