USP (Chemically Pure) Meets the requirement of the ADA, specification # 57. Long shelf life. Radio-opaque, easy evaluation of the filled canal by x-rays. Contains anti bacteria material (Will not allow growth of bacteria).
Standardized Sizes Nš 15, 20, 25, 30, 35, 40, 45, Assorted 15-40, Assorted 45-80.
Non Standardized Sizes: XF, FF, MF, F, FM, M.