41 double-sided printed sheets cover total 1000 core sight words divided into Level 1 to Level 10, classified by color gradient for progressive vocabulary memorization for early language learners. Detachable plastic binder ring connects all cards neatly, allowing single sheet removal for targeted word practice and easy storage after daily study sessions. High clear ink printing ensures distinct word text on both sides of each card, matching kids’ visual reading habit without blurry text interference. Thin lightweight card material takes little space inside schoolbags and backpacks, supporting vocabulary practice during travel, car rides and outdoor downtime. Graded word arrangement follows children’s language acquisition rhythm, suitable for repeated daily reading and recitation to build basic English reading foundation.