Madeira Sensa Green Smartbox includes 18 x 1100YD/1000M spools plus 5 quilting needles. The first quilting and embroidery thread made of 100% naturally strong and smooth Lyocell. The thread has a slight sheen that embroiders and quilts beautifully. OEKO TEX certified, Lyocell is a rayon that is produced in a closed loop system to prevent chemical polution and uses either renewable bamboo or eucalyptus. Considered to be sustainable and environmentally responsible, these threads can be recycled.