13 single crochets and 14 rows = 4 inches
1st row: 1 single crochet in 2nd chain from hook.1 single crochet in each chain to end of chain. Turn.
(There will be 25 single crochets at end of row.)
2nd row: Ch 1. 1 single crochet in each single crochet across row. Turn. (There will be 25 single crochets at end of row.)
Repeat last row until work from beginning measures 8 inches.
Button loop: Chain 6. Join with slip stitch to last single crochet. Fasten off.
Sew button to center of cloth.