This is a simple set of 10x colour filters. The cellulose acetate material is cut into unmounted squares 100x100mm. Used in general optics and in the study of colour mixing. The colours are:
Primary red (HL1882-002), primary green (HL1882-003), primary blue (HL1882-006), chrome yellow (HL1882-011), magenta (HL1882-004), violet (HL1882-005), yellow (HL1882-007), cyan (HL1882-008), orange (HL1882-009) and bright blue (HL1882-010).
The pieces are also available as individual colours (codes listed above).

Instruction Sheet