Bought these only because the permanent markers I usually buy were out of stock. Glad they were. These 'generic' ones are surprisingly good for cardboard box marking with bare/ untreated surfaces. Have a dark intense black with a sharp edge on the line. Yes would recommend them to a friend.
Would not recommend My fifth graders use them at school they were runny left their hands all black when they wipe the board the board turn black and would not come off they were so embarrassed