ACID-FREE & RECYCLABLE: MEEDEN Watercolor Paper, each sheet measures 9x12",140 lb/300 grams. Acid-Free (pH Neutral) signifies the non-yellow features and fading resistance. With a total of 20 sheets of -pressed watercolor paper, drawing, lining, and painting, it is excellent to go with creating fantastic artwork and sketches. HIGH-QUALITY PAPER: We abide by the principle of using sustainable processes in manufacturing all MEEDEN products. The long and robust fibers in MEEDEN watercolor paper make them the ideal sheets for mastering watercolor techniques and provide timeless beauty and an inimitable touch. They absorb water well, are excellent for blending, and leave clean lines with no bleed-through. EASY TO USE: All these papers are gelatinized bound, and there is a hardboard underneath for better protection and control whenever and wherever you want to draw it. Here are 4 steps to get it going: ①Find the gap on the INNER SIDE.② Put the divider in.③Slowly separate one from the cube.④Now, one is off from the cube. Let's go painting! PERFECT FOR ALL: MEEDEN Watercolor paper block works excellently with all wet or dry media, including watercolor, gouache, ink, pencile, etc. Its surface withstands scraping, erasing, and repeated washes, making it highly suitable for better paint performance and durability. MEEDEN watercolor paper is available in 3 sizes and 3 revered textures: cold press, hot press, and rough. MEEDEN SOLUTION FOR ALL YOUR CONCERN: Worrying about no-response or auto-reply customer service? We say absolutely no to that and are deeply committed to answering any question and providing any possible way to solve problems that may occur during the use. At MEEDEN, your experience is EVERYTHING.