Let your creativity blast-off with Astrobrights Happy Paper. Astrobrights paper is 20% thicker than standard paper so you can achieve bleed-free results for single and double-sided documents. Creative geniuses and novices alike can create vibrant brochures school projects signs coupons and DIY paper crafting! Plus this color paper saves money on pricey full-color ink while acting as the perfect canvas. Astrobrights paper is also lignin-free and acid-free so your creations won t yellow over time. 500 Sheets.