A simple way to turn empty plastic bottles into handy plant waterers; just fill the bottle with water, screw one of these nozzles onto the neck and away you go. An easy way to keep your houseplants topped up, these nozzles are also fun for kids, and a great way of getting them into planting. The 25mm thread size of the nozzles mean they fit most commercial plastic bottles (although be sure to measure your bottle neck diameter to make sure), and a handy pack of ten means that you'll never go short.