Codes:
HL0786-01 (5 cm FL)
HL0796-01 (7.5 cm FL)
HL0806-01 (10 cm FL)
HL0816-01 (15 cm FL)
HL0826-01 (20 cm FL)
HL0836-01 (25 cm FL)
HL0846-01 (30 cm FL)
HL0856-01 (50 cm FL)

Silver backed mirror used for physics and educational purposes.