4 Colour-Coded Boards. Stainless-Steel Case. The Joseph Joseph Folio Steel set includes four colour-coded chopping boards stored in a sleek, fingerprint-proof stainless-steel case that keeps them organised and dry on the worktop. Key Features:. 4 colour-coded boards: helps avoid cross-contamination. Knife-friendly surface: textured, with non-slip feet. Steel lifting bars: easy to pull out and carry each board. Fingerprint-proof case: stainless steel, holds boards apart to dry. Large size: generous cutting area. Care & Use:. Boards are dishwasher safe; wipe the case clean.