Free Filet Crochet Pattern ~ Little Birds. Crochet Materials: Crochet cotton no 10: About 1755 meters. Steel hook US size 7 or size for gauge. Crochet Gauge: Using crochet cotton size 10: 10 squares = 5.8 cm, 10 rows = 6.3 cm. Approximate finished size: Using crochet cotton size 10: width = 70.1 cm, height […]