... Precision components Solid construction Water based ink. Self-inking stamps have a built in ink pad that automatically inks the ... ,000 impression cycles.Water based ink lasts 5000s of impressions without re-inking Item NumImage AreaQty/CtnG.W ... .5X35.5CMS6037X76MM144PCS26KGS20KGS63X37.5X49CM72PCS13KGS11.5KGS42.5X37X37.5CM,,,,,,self inking stamp,, self-inking stamp,,,,self ink stamp Self Inking Stamp