Dream Hair Stick extension is made of high quality human hair with straight tip, cold fusion method: the extensions can be attached with microbeads, rings and links if you do not want to use heat . Definitely safe for your hair and scalp. Whether you have short or long hair, our hair extensions can make your hair longer, thicker or fuller. Hair extensions are natural and look like your own hair. Product DetailsHair fiber: human hair Hair model: straight hair Hair texture: silky texture Hair length: 16 inches (40 cm) Application method: cold fusion use: microbeads and needle Key Features One pack contains 100 parts