Wendy Vecchi's Mini Archival Ink Pads have the same high quality, fade resistant dye ink formula used in the full size Archival Ink Pads. Archival Inks provide long lasting stamping results that are permanent on many surfaces. Get a crisp image that doesn't bleed over water based inks, markers, acrylic paint, water colors, and more. The small size makes these convenient for projects on the go. This package contains four 1.75x1.38x0.65 inch ink pads. Recommended for ages 18 and up. Conforms to ASTM D4236. Made in USA.