Ideal Size -- Our art round canvas panels includes 4 sizes, separately coming in about 3.93inch(10cm), 5.9inch(15cm), 7.87inch(20cm), 11.81inch(30cm) in diameter, 3pcs per size, totally 12pcs, meeting your different sized painting paper needsQuality and Durable -- 3mm thick round painting panels are made of quality canvas, nice surface texture and really grabbing the paint. Glued over high quality coated paper board, your painting wont easy to curl up, bend or even warpVersatile Painting Panels -- Lightweight and sturdy, these canvas boards are perfect for art theme paint parties, keepsake crafting, collages, photography and other projects. You can do calligraphy to customize for special occasions, decorate your room, create story boards to mark a trip, birthday, wedding, etcReady to Use -- Pre-primed with acid-free gesso, this art canvas set come ready-to-paint right out of the box. No preps needed. Warm tips: They are not designed for acrylic pouring or heavy texture painting because of the amount of paint that is required. Recommended to use for acrylic, oil, watercolor, tempera or any practicing techniquesGreat Gift Idea -- Designed by artists and made for all art lovers. It will be an excellent gift for your artist friends, families to inspire creativity. It is an ideal art supply for beginner painters to practise, art teacher for classroom use and artists to try new mediums and textures