Portable Sharpening Steel by Burgon and Ball, who've been making shears in Sheffield, England, since 1730.

Genuine Sheffield steel - magnetized to give superior performance as the filings remain on the steel - where they can be simply wiped off with a cloth - rather than remaining on the blade where they may rust.

10cm steel unscrews and can be slotted into 13cm handle (complete with pocket clip) for storage when not in use.

Ideal for smaller blade tools.