Explore word building, phonics and spelling patterns at many different levels with this wide array of color - coded, tactile Reading Rods. Students start out building simple words with consonants and vowels, and advance to incorporating silent e, blends, digraphs, and advanced vowel combinations (vowel digraphs, diphthongs and r - controlled vowels). Convenient storage bucket contains 109 rods, including vowels, consonants, blends and digraphs, advanced vowels and silent e. Use alone or with any Reading Rods Word Building materials.