The string gap is the space between the two halves of the yo-yo body. Some yo-yos have an adjustable gap, allowing the user to increase or decrease the size of this space. A wider gap makes yo-yos less responsive, and lowers drag from the string touching the sides of the yo-yo. Wider gaps are ideal for advanced- to competition-level string trick yo-yos. A narrower gap makes yo-yos more responsive, and can also lower spin time by increasing drag on the sides of the yo-yo. Narrow gaps are idea for beginners' and looping yo-yos. For yo-yos with adjustable string gaps, there are different methods;