5x5 Lace closure is where the closure of the lace is 5 inches wide and 5 inches long. It's big enough to do free parting. Our closures are made of 100% Virgin Human Hair, so they can be styled exactly like your own hair. Blow dry it, iron it, curl it- just be sure to use a heat protectant spray! Water wave hair is a unique pattern of virgin hair that combines the look of curly and wavy hair to create a natural look.