Posted by a reviewer on Amazon

I havent had them long enough to discern if the leaky ones are prone to a shorter lifespan but there werent exactly puddles in each cap

Posted by a reviewer on Amazon

One thing i noticed that no other reviewers seemed to make mention of is that when compared to competing products in my case prismacolor fineliners levenger raven black bottled ink levenger standard black fountain cartridges and brush pens from kuretake fudegokochi ls110 ls410 pilot copic gasenfude and pentel this brand definitely does not lay down quite as opaque or perhaps just not as dark a black as would be desired by serious hobbyist or professionallevel users for inking illustrations

Posted by a reviewer on Amazon

Again its not a terribly big deal really hardly even noticeable unless compared sidebyside directly with other inks and even then it seems like the absolute darkest of inks were those less likely to claim archival waterproof or lightfast qualities like these or prismacolors lining markers

Posted by a reviewer on Amazon

None of the nibs feel flimsy or brittle nor do they catch in the tooth of even rougher textured paper and the ink lays precisely in uniform width and darkness with minimal tendency to feather or bleed to excess in even lowend cheaper quality paper

Posted by a reviewer on Amazon

While technically the ss l felt nibs are the only ones labeled brush tipped the calligraphy xs s m line would actually more closely fall under the increasingly popular brushfude pen umbrella with pressurevariable line width owed to the angular plastic nibs closely resembling those of the pilot pocket brush firm navy blue barrel the kuretake fudegokochi ls110 black barrel and as i understand the tombow fudenosuke and zebra fude product lines further as none of these are true bristled brushes nor are they flat chiselesque tips like the calligraphy product lines offered by kuretakezig or sakuramicron

Posted by a reviewer on Amazon

The closest likeness ive found in shape is actually the kuretakezig clean color real brush line but instead of nylon bristles its a sharply terminating thin felt tip and as such it offers the greatest range of line widths of the whole set from the 02 with light pressure on the very tip to just wider than even the l along their sides

Posted by a reviewer on Amazon

The caps are very hard to pull off

Posted by a reviewer on Amazon

Upon delivery two of them had exploded so it was a little messy at first