1. Material: acrylic 2. Thickness: 3mm 3. Durable, not easy to break, can be used for a long time 4. Yarn holder wears on your wrist to keep your yarn close at hand and stored without tying yourself up 5. Comes with a detachable wrist strap so you can wear it on your wrist while knitting or anywhere a leather wrist strap can be accommodated 6. Comfortable and functional, it fits snugly on your wrist