[PACKAGE CONTENT] 2 windproof nozzles included, available in single head or double head types; transparent plastic pieces let you monitor fluid flow and serve as direct replacements for common sprayer tips. [BROAD COMPATIBILITY] Designed to fit a wide range of handheld and backpack sprayers and to match common nozzle thread sizes so you can pair with different brands and models. [WIND-RESISTANT SPRAY PERFORMANCE] Nozzle geometry stabilizes the spray pattern in breezy conditions to reduce drift and provide more even coverage for and foliar treatments. [ WEATHER-RESISTANT MATERIAL] Molded from sturdy plastic that withstands sun and moisture exposure for dependable outdoor use without degradation. [QUICK TOOL-FREE ATTACHMENT] Fast installation and removal without tools minimizes downtime and eases cleaning; PLEASE CHECK YOUR SPRAYER SIZE CHART NOT AMAZON'S SIZE CHART BEFORE ORDERING.