The tiller extension clip is available in 4 sizes for different diameter tiller extensions. the clip screws to the tiller so that the tiller extension can be put into it to store it so that you can use the tiller.
23.40 Clip to suit 16mm Tiller Extension Diameter
23.84 Clip to suit 19mm Tiller Extension Diameter
23.86 Clip to suit 22mm Tiller Extension Diameter
23.87 Clip to suit 25mm Tiller Extension Diameter