Easichalk themselves were great and cannot fault their services. However the price you pay for posca pens you expect them to last a while a few of mine 2 from my rock starter set and 2 I brought separatehave ran out completely Iv followed all the rules to the t and even asked fellow posca pen users but the pens have definetly ran out of paint I’m not a heavy rock painter and haven’t left lids of so a bit sad as saved for my posca. I can’t afford to replace. So I have questioned are poscas even worth the money. I haven’t contacted Easichalk regarding this as thought they’d see it here.