A weavers rule is a convenient way to check progress as weaving proceeds. Simple scales based on common repetition lengths that are legible from a distance. Some scales have enhanced graduations towards one end.Scales decoratively marked on both sides and both edges with a total of 4 scales & measurement edges.Overall size ~ 18 x 5cm (7” x 2”)Ranges: 0 – 25 / 50 / 75 / 100mm (0 -1” / 2” / 3” / 4”).