This Clover #8104 Picot gauge set comes with seven separate Picot gauges. Sizes are 1,2,3,5,7,10 and 13. Size 5 is equal to 5mm or approximately 3/16 inch. Each gauge allows you to make uniform picots for Tatting. Thanks to these gauges, you will be able to create picots of the same height. As the gauges have no sharp corners, picots can be beautifully finished with round edges. Detailed instructions included.