I-Tip extensions, also known as stick tip extensions or cold fusion extensions, consist of small, shoelace-tip-sized sections of hair that are attached to the natural hair using a non-heating method. A micro-ring, a tiny looped bead, is threaded onto the natural hair and the I-Tip extension is inserted into the bead which is then clamped down to secure the extension in place. This method allows for 360-degree movement and is popular for adding length, volume, or even pops of color without the use of heat, thereby preserving hair health.