S: suitable for remote controller Length- 17.8cm; width- 6.6cm

中号：适合遥控器长20.5cm；宽6.7cm以下；

M: suitable for remote controller Length- 20.5cm; width- 6.7cm

大号：适合遥控器长24.5cm；宽7cm 以下

L: suitable for remote controller Length- 24.5cm; width- 7cm