1.Mild gardener.These caps have perfect soft stream waters wonderfully and does not disturb top layer of soil.They give a nice gentle shower instead of a drowning pour and a hard flow from a watering can.A gentle squeeze sends a sprinkle of water with precision and without digging holes in the dirt.Won't wash out seeds in plug trays,or damage seedlings. 2.Help control the amount of water and the force.Small children can easily water the plants in their little garden without spilling the water on one plant or wet their clothes.These sprinkler tops can turn ordinary liter soda bottles into useful gentle waterers.Theyre just right for starting seeds indoors that not to wash away the carefully distributed seeds from their places in the seed trays. 3.Great for using in small spaces.If you go to a beach that does not provide showers,you can use a two-liter water bottle to rinse most of the salt and sand on the body.Also great for camping.This is the clever way to water tiny seedlings without washing them out of their fine starting soil.The holes are big enough,you needn't shake the bottle to get water to come out. 4.Seal good and no leak.The sprinkler is hard to pop off and won't get water to come out,so it won't drown your plants.The top can be attached more securely.Not easy to fall out when water pressure is coming through.They can make it easier to gently sprinkle little seedlings on the window sill.You can also use a few drops of marine glue along the edges to secure the cap. 5.Shower plants is easier.Just screw the top onto a plastic water bottle.They are the perfect holding and squeezing size and great for getting in under plants.Squeeze the water bottle and voila a gentle rain of water will fall and water your seedlings.Fits on a standard long neck water or soda bottle.