This hose mender will fix standard garden hose with 5/8" ID. If needed larger or smaller just use a tool like Cura and re-size entire object proportionately. Use some 5/8" or slightly larger hose clamps.

6/30/2016 Update: updated the object to have a 10mm hole instead of 11mm and also made the object 4mm longer. This is little more heavy duty and take stronger hose clamps.