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These A3 3mm white foam boards measure 297 x 420mm (11.7 x 16.5) and offer a smooth, rigid and lightweight surface ideal for creative and professional applications. Their firm foam core provides excellent stability while remaining easy to cut and shape for a variety of design and display needs.The bright white finish enhances clarity for artwork, signage, presentations and model making, making them suitable for classrooms, studios, offices and retail environments. They maintain their structure without bending, ensuring clean, professional results.This pack of 15 A3 boards is perfect for artists, students, hobbyists and businesses seeking dependable quality for mounting, framing, crafting and visual displays.