Attwood's heavy-duty Ski Pylons will pull you anywhere you want to go and offer advanced features for durability and quality performance. Do not use Ski Pylons to pull any recreational equipment that is tied to the tow rope, such as water tubes, aquaplanes, etc. The 96008 model provided nylon flush mounting for both the post base and the arm base, with a height adjustment from 28" to 33" and an arm length adjustment from 33" to 56". 1" post diameter.