The 2 lb Marking Chalk Refill Powder by Crescent-Lufkin is a high-performing product designed for precise marking and layout tasks. This product comes in 4 8oz bottles of blue chalk powder, providing a total of 2 lbs of marking material. The chalk line chalk is known for its excellent performance and is ideal for use in various home and workshop applications. Manufactured in China, this product is reliable for marking on different surfaces with ease and accuracy.