Special extension for all Hobby Terra Fix & Easy terrariums Allows you to stack up to 3 terrariums on top of each other Contents: 4 x threaded rods, 4 x support rods Thanks to the combination of threaded and support rods, it is possible to place up to 3 terrariums on top of each other Thanks to the large distance of 17.2 cm between two terrariums, lamps, heating mats or other accessories can be easily accommodated