Dental Mirror #4, Simple Stem, 12/bx, D-MSS-04. Simple Stem Mirror #4, heads only, 12 pcs per box.  One (1) FREE Steel handle comes with the box of 12 mirrors. Additional steel or silicone handles may be purchased separately. Made with quality Stainless Steel casing and German-made high quality glass mirror. A silicone seal between mirror and casing prevents water from entering during autoclave of instrument. No 4 mirror has 22 mm diameter. Plane Surface mirrors. Product Code: D-MSS-04