Small size (21 inches) 16" 5x5 closure, 18" hair bundle & 20" hair bundle.
This is a hand-stitched glueless unit with a built-in elastic strap to secure the unit. 
Transparent lace closure will need to be replaced depending on the wear and tear. Hair bundles last 2 years plus with the proper care. 
Mink Brazilian extensions will range between colors 1b - 2. 
Minimal hair products are used on the unit.