Premier Garden Supplies Concrete Post Extenders 2-way Straight [100mm X 100mm] Optional Heights 1ft (30cm), 1.5ft (45cm), 2ft (60cm) or 3ft (90cm) Designed for Flat/Bobble/Pyramid Top Posts Extending the height of your fence has never been easier with the Premier Garden Supplies Post Extender. With this, you will no longer need to rip out existing concrete posts only to replace them with longer posts. Save yourself the hassle, simply buy the extender that matches the difference between your existing post to the new panel size to fill in the gaps. These can be either slid into place or screwed into the fence panels. Support British Manufacturers, Buy British, Buy the Best and Buy Premier Garden Supplies. Product Dimensions: Width: 100mm x Depth: 100mm x Optional Heights: 1ft (30cm), 1.5ft (45cm) or 2ft (60cm). 3ft options available on separate listings see description for links. Extend the height of your fence post with this extender. Which will allow you to install a taller fence