Lidl folding knife:
or
When these last became available (at 2.99) I was impressed with the sturdy build quality and bought a few to have around.
In use however I have found that the blade retention is poor, it turns out that the one touch blade change mechanism only operates on the top
0.5 to 1mm or so of the familiar utility blade retention slot so any use that pulls on the blade is likely to result in wear/damage to the retention mechanism and failure to retain the blade.For that reason I can't recommend these to new users.