Check the listing for details. Susan Bates Knit Chek- Needle, Hook and Stitch Gauge. Condition: New. Listed at 3.50 USD. Susan Bates Knit Chek- Needle, Hook and Stitch Gauge Susan Bates Knit Chek- Needle, Hook and Stitch Gauge Susan Bates Knit Chek. This handy tool does it all! It is made of durable metal and is used to check your stitch and row gauge for both knitting and crochet. If youre not sure what size needle or crochet hook you have, this is the perfect tool to use. You can verify the size of your needle or crochet hook. It measures crochet hook sizes from US 0, B-1 to P-16 (2mm to 11.5mm) and measures knitting needle sizes from 0 thru 15 and and 17 thru 50. It also has a 2 by 2 area so you can actually count your stitches and your rows. Knit Chek measures only 3 by 5 1/2 making it a perfect size for traveling or storing away with your other knitting or crochet accessories.