An assortment of 3 elastic-threaders. Ideal for easily replacing drawstrings, elastic, hood strings and belts from joggers and swimsuits. 3 sizes: 6 mm, 12 mm and 18 mm. BOHIN elastic-threaders will save you precious time. The kit contains threaders in three different sizes: 6 mm, 12 mm and 18 mm Flexible enough to easily thread the elastic without damaging the fabric. To ensure the elastic stays firmly in the tool, pass the end through the lower hole and then out through the upper hole with about 10 cm of excess (otherwise it will slip out).