We at Early Childhood Resources (ECR) are committed to developing and distributing only the highest quality furniture, classroom equipment, and art products, ensuring that these products represent the maximum value in today's marketplace. Our focus and commitment continues to bring added value in features, functionality and performance while always offering optimal service. Educators Resource offers products for preK-8 learning materials and educational toys used by schools, teachers, parents and children. Super Strong Magnetic Hooks Colorful magnetic hooks lend you a strong hand by holding up to 20 pounds each! Set of 4 bright colors- red, blue, green and yellow. Measures 1 1/2" in diameter.