Slate Coaster and Poetry Book Set "Sincerely" Make a statement with our slate coaster and poetry book set, perfect for poetry enthusiasts and art lovers alike. The engraved QR code on each coaster unlocks an illustrated poetry book, creating a seamless blend of function and creativity. Enhance your reading nook or study with this exceptional set. Simply scan QR Code with your smartphone or tablet to download the illustrated poems and rhymes. Dimensions: 4"x4" Poetry is my own copyrighted work.