While locks are not technically forbidden by US or state laws, there are local restrictions on some of them (usually when paired with other mechanisms, like automatic deployments). However, outside the US — as in the UK — laws are even stricter, sometimes banning locks entirely.
This knife sidesteps even the most restrictive bans on folding knives by ditching the flipper and lock and sporting a sub-three-inch blade.

Full house
Instead of launching just a single version of the Elementum Slip Joint, Civivi has introduced it in five distinct versions, so there’s something here for everyone. While they’re all 7.02 inches with a 2.96-inch blade, complete with a nail nick and slipjoint mechanism, they differ a bit in their materials.
The three most affordable versions are offered with 14C28N steel (slightly less tough than D2 but with better corrosion resistance) and your choice of G10, canvas Micarta or Guibortia wood. A fourth, also boasting 14C28N steel, has a “Blue Ocean” resin handle. The last, most upscale version has a carbon fiber handle and Damascus steel blade.