5 color water based Re-fill Ink for self inking Ideal/Trodat Stamps & stamp pads Water based Refill Inks for Self Inking Stamps Trodat Stamp Pad Ink Bottle contains of 2/3 oz bottle 28ml Stamp pad ink to re-ink your Trodat stamp pads Available ink colors are RED / BLUE / BLACK / GREEN / PURPLE Each Ink color bottle cost 6.49$, Please inform us your color choice after placing order, For use on all Trodat self inking stamps.