Loonie medium-hard green rib, 4.25" Wide x 2" Tall. A medium-soft grade of this shape is also available (red).
Note: Loonie ribs share the same shapes and colours as Mudtool ribs – the original polymer ribs designed by Michael Sherrill – but they are not the same. There are differences in the range of flexibilities (2 instead of 4) and differences in specific colour flexibilities (red, for instance is a soft plastic but a little stiffer than the Mudtools original). Loonie Tools is a PSH brand of tools imported from a supplier in Taiwan. Mudtools is a U.S company in North Carolina.