The Main Kit will enclose a diameter of 25.5 cm [10 in] and each additional section will increase the diameter by about 13 cm [5 in].
(An Extension Kit includes 2 sections).

Each section is

8 cm [3 in]

40 cm [16 in]

Slugbandit will cover the following approximate areas:

All sizes are approximate

These shapes do not have to be circular. However, avoid bending around a sharp radius i.e. less than 8 cm.
May not be suitable for very uneven ground such as rockeries.