There are a total of 50 of these professional crochet Block Board steel rods. Each one has an exact length of 5.9 in and a diameter of 3 mm, which is suitable for any crochet pin hole with a 3 mm hole diameter. If you are using a granny square needle stopper and the steel rod it comes with is no longer sufficient and it has a 3mm hole diameter, this stainless steel pin of ours can help you complete your crochet projects! This steel rod kit is made of high quality stainless steel, which is super strong, wear-resistant and rust-resistant to long-lasting performance without bending or breaking. The smooth and flat of the steel pins used for block boards prevents crochet threads from snagging or damaged, thus maintaining the character of the piece throughout the knitting process. The included portable storage box not only keeps the crochet steel rods for blocking board organized, but also makes it easy to transport so you can be wherever you go. And with this box packaging, you can perfectly give our steel rods to your friends who are doing knitting projects that will use stainless steel pins! These stainless steel rods are extremely compatible with crochet block boards made from a wide range of materials. Crochet Block Board Rods come with 50 pcs rods for those times when you need to do a lot of knitting. Whether it's traditional wood, sturdy plastic, or foam, the steel rods will fit tightly to stability and smoothness. If you're using a board that matches our dimensions, you 't hesitate to choose our stainless steel pins! Product Description This 15cm (5.9inch) professional grade steel rod is Perfect for hand knitters. Made of high quality steel, it is sturdy and , with a smooth that does not damage the yarns. Comes with a portable storage case for easy carrying and storage, keeping your knitting tools tidy at all times. If you're knitting a project that requires rods and you happen to need them, you might want to try our stainless steel rods! By choosing our stainless steel needles, you can efficiently continue with your knitting projects, whether you are a novice or an experienced knitter! Whether you are giving it to a knitting enthusiast friend or as a holiday gift, this steel rod will add a special meaning to your gift. It represents your care and blessing for the other person, letting them enjoy the fun of knitting and at the same time feel your warmth and heart. So, why not choose this 15cm (5.9inch) professional-grade steel rod as a good gift, and let your gift become a good memory in your partner's heart. Colour: As Shown Material: Stainless Steel Package Contents: 50 x 15 cm (5.9 inch) stainless steel rod 1 x storage box (rose gold) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.