100 grams per bundle 

.5-1 gram per tip

natural color

14 to 30 inches available 

Microlinks is a popular strand by strand technique that’s applied to each strand of hair. the strands of hair have a tip on them which is made out of keratin , you will pull the links through the beads and squeeze to attach.  you can search for a stylist by searching Google or you can ask for a referral. 
curl pattern may vary from yours but it’s ideal to get a curl as close to your own pattern