Calling all photographers, artists, and crafters! This Somime photo mat set gives you everything you need to professionally display your 5x7 photos in 8x10 frames. Each pack includes 10 black mats with white core bevel cuts, 10 backing boards, and 10 clear plastic bags - seriously, it's the complete package for framing multiple pieces. The acid-free materials are crucial because they protect your precious photos from yellowing and deterioration over time, preserving your memories and artwork for years to come. The 4-ply thickness (about 1.4mm) gives your displays a professional, substantial feel, and the precise 4.5x6.5 inch opening perfectly frames standard 5x7 prints. The white core creates a clean, crisp border that makes your images pop, while the black mat color provides elegant contrast for most photo subjects. Whether you're framing family photos, artwork, certificates, or creating a gallery wall, these mats add that professional touch that elevates your displays from basic to beautiful. The included backing boards provide extra support, and the clear bags protect against dust when storing or transporting your framed pieces. It's one of those simple supplies that makes a huge difference in how polished your finished projects look, and having 10 sets means you can frame an entire collection without running back to the store.