Stamper, Full size display Precision components Solid construction Water based ink Self-inking stamps have a built in ink pad that automatically ... tested to over 100,000 impression cycles.Water based ink lasts 5000s of impressions without re-inking Item NumImage ... .5X24CMS131175X15MM144PCS13.5KGS11.5KGS46X45.6X27.6CMS131282X25MM144PCS21KGS18KGS56.5X47.8X31.5CM,,,,,stamper,,,,, Stamper