convenient,colorful, slant ,hardcover,cute shaped reusable sticky paper note pads holder Plastic sticky notepad & memo ... have any questions,pls feel free to contact with meCute shaped reusable sticky paper note pads holder 1) Heidelberg printing machine ... (core material)duplex grey board: 250gsm-1500gsmcorrugated paper: K, A, B, C; three-layer, five-layer, seven-layer, single face corrugated ...