‎12.6 x 0.79 x 29.53 inches

Make sure this fits by entering your model number. [Patent Design] Attach the heating and lighting device on the top of terrarium and Adjust to suitable height. Then install screws(4) and tighten until lazy arm is fixed. Suitable for terrariums with height of 11.8in-23.6in,the extension tube can be added for taller terrariums