Regarding Length：We don't measure the longest hair from where it rotates，Our product's 14 inches are equivalent to their measurement method's 20 inches！Don't buy the wrong size when making a purchase.
About weight：We default to a density of 180%. If you need a higher density, please contact us
About delivery time：We prefer a personalized customization model. If you have no specific requirements for the product, please purchase directly and we will ship it to you within 72 hours
About logistics: We default to using FedEx, with a delivery time of 2-3 days
