Features: brand new and high quality Good colour fastness, soaping and rubbing resistance. Great for sewing decoration, general stitching, crafts, dress making, etc. It is a novel and unique yarn which makes your embroidery product better. Made of polyester material, durable, environmental for protection and do not harm to people. Temperature changing embroidery thread will show different colors at a certain temperature. Specifications: Material:Polyester Type:B01/B02/B03/B04/B05/B06/B07/B08/B09/B10/B11/B12/B13/B14 Size:Approx. 6.3x13cm2.48x5.12 inches Package Includes: 1 Roll Temperature Change Yarn note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.