Lightweight and with a very low centre of gravity, Grip-Flex pots are easy to ship out and have a unique 'press-inside to flex-open' soft base. Press the base inside the pot and the channel that grips onto your pole will open, to make affixing or taking-off pots easy. This unique feature also allows for a strong grip, while totally protecting your pole. You get two sizes in the packet, with optional anti-spill rim lids, and then a totally unique lid to convert the smaller pot to be a micro size, that no-one can see you are using! They also have a flatter profile for wind resistance at long distance (14.5m+)