A quick and easy way to fit flexi net rods (655 03505, available separately) to UPVC and aluminium windows. Each pair will carry up to 800g. Clean and dry the area prior to placing the hooks onto the surface and ensure surface is flat. Separate into individual hooks with a pair of strong scissors. Peel the backing from the hooks. Making sure the hooks are level, press each individual hook firmly into position onto the flat surface. Leave for at least 6 hours before positioning the Flexi net rod onto them.