Gutermann Sewing Thread Set: Cotton: 8 x 100m: with Universal Ruler8 spools of high quality, mercerized Cotton C Ne 50 100m in bright colours and a Omnigrid universal ruler For safely guiding roller cutters and drawing knives during patchwork and quilting Particularly suitable for drawing graphic shapes in patchwork Scratch resistant yellow black grid print allowing accurate markings on both dark and light fabrics and materials Transparent with metric scale Care instructions: Machine wash 95 degrees Only oxygen non