Crochet needles, going on the numbered U.S. system range from one to ten in size.
In the US, knitting needle sizes are in numbers; crochet hooks use both numbers and letters.
it is best to use an H or I size hook
For yarn, use an "E" or an "F".
that would be a size P crochet hook
Projects that are best suited for a 2.5 mm crochet hook size are typically intricate and delicate items such as lacework, amigurumi, and fine garments like shawls or baby clothes.
You should use a size J/10 crochet hook for a project that requires a 6 mm crochet hook.
A 00 crochet hook is typically around 9.0 millimeters in size.
00 is a steel hook size. Manufacturers vary in their mm sizing. I found 00 hooks listed as 2.75 to 3.5mm If you have a particular hook and you need to know the mm sizing of it, I suggest you purchase a Crochet Hook Size Gauge Tool. The knitting needle ones do not give accurate sizing for a crochet hook. Annie's Attic sells these and I'm sure other stores do as well.
The recommended size of crochet hook for working with yarn that is 5mm thick is typically a 5mm crochet hook.
A size "C" crochet is generally around 2.75 mm in the United States. There isn't really any specific standards regarding crochet hook sizes, different manufacturers made their hooks in different sizes, and that pretty much still is happening today.
What you need for to crochet is Crochet Hook Size H or bigger Next you need 100% Cotton yarn 4ply you can get some at Walmart or if you hvae a Ben Franklin Craft Store or any kind of place that sells yarn. Now if you are a beginner at crocheting then you need to go to Youtube.com and type in How to crochet. Thanks and have fun Bye:)
For this project, you should use a size 6 yarn crochet hook.