Single-sided adhesive cotton YM-10P, 1 piece Size: Approximately 100 x 100cm, 1 piece Thickness: Approximately 2mm (approximately 1mm when compressed) Material: 100% polyester This is a product from the manufacturer Marushin, and it's a highly recommended item with excellent cost performance. I'm closing my handmade business, so I'm selling this as I no longer need it. It's a single-sided adhesive type, so you can finish your projects without basting. Perfect for making bags, pouches, and small items. According to the original description, the thickness is about 2mm, but I measured the thickness myself by stacking 8 layers, and it was about 2.2cm (about 2.75mm per piece). When compressed, 8 layers are 8mm (about 1mm per piece). It's supple and soft. (Not a stiff, hard type) This is a single-piece listing, but you can also purchase multiple pieces. If you'd like to buy two or more, please leave a comment (^^) Single-sided adhesive cotton YM-10P, 1 piece, single-sided adhesive quilt batting, iron-on quilt batting, material