Perfect for BioBay Planning! Simple, scientific, modern and beautiful. Make 2020 a year you keep track of full and new moons, super moons, eclipses, solstices, equinox, plus also know the day of the week. These large wall calendars are hand screen printed on sturdy 22" x 30" Stonehenge paper with beautiful metallic inks. Paper is made in the USA of 100% cotton & has 2 deckled edges.