3674 4 day hair bulks products are offered for sale by suppliers on Alibaba.com, of which human hair extensions accounts for 23%, human hair extensions (light color) accounts for 9%, and hair extension accounts for 1%.
A wide variety of 4 day hair bulks options are available to you, such as body wave, silky straight wave and deep wave.You can also choose from double weft, machine double weft and single weft 4 day hair bulks,as well as from hair weaving, cuticle aligned hair, and hair bulk 4 day hair bulks,and whether 4 day hair bulks is yes, or no.