Hygloss Products White Styrofoam Blocks - for Projects, Arts, & Crafts, 4 by 12 by 1-Inch, Pack of 6 FLORAL STYROFOAM BLOCKS: White Styrofoam blocks are perfect for silk flower arrangements and can be painted with fabric paint and decorated for a beautiful display. GREAT FOR SCHOOL PROJECTS: Kids can get creative and use block Styrofoam for science experiments, dioramas, and creative project displays. TEACH KIDS NUMBERS AND LETTERS: Easily carve a Styrofoam block into numbers and letters to help your tactile learners learn spelling, the alphabet, and numbers. PERFECT FOR ARTS AND CRAFTS: Craft Styrofoam blocks are perfect for crafters who like to sculpt, carve, paint, and block print. STYROFOAM CENTERPIECE: Use blocks of Styrofoam as a base for display centerpieces at parties or events and in your home.