5x5 Closure Skinlike HD Lace Closure Only, 18 Inch Straight Super Thin 0.1mm HD Closure Natural Black Bleached Knots Quick Wear Pre-plucked Natural Hairline Glueless Closure Item# A14 100% Brazilian virgin human hair. Lace type: Real HD Swiss lace, which is the most undetectable lace. It's ultra-thin HD lace which is only 0.10mm. With the super capabilities to blend seamlessly, the super fine HD can blend perfectly into all your skin. Lace Space: 5x5 inches, can be made into deep middle part. Tiny Pre-bleached Knots 5x5 Lace Closure. The tiny knots of HD lace closure have only one or two strand of hair in each lace hole, mimicking the real human hair follicles. After bleaching, the knot becomes more natural and realistic, looking like the hair grows from your scalp.