Netball Post Mobile Systems. The mobile netball upright is made from special aluminium profiles. The post measures a diameter of 80 mm. The ring is manufactured from a 16-mm solid round and measures an inside diameter of 380 mm. The ring is separated from the post. Therefore, the height and the direction of the ring can be adjusted to the condition on site. The ring comes together with a 6 mm thick nylon net. The post is equipped with two non-marking 200 mm TPU wheels. The weight at the back of the post is 40 kg, to ensure the necessary stability.