The garden sprayer pump is a Weirran patented sprayer. Its human engineering design fits any hand size comfortably. A 17.5inchs unfolded length helps you to reach farther, keeps chemicals away from you, tiny nozzle on a bended lance makes spraying to narrow slit and dead corner easily. Big switch design lets you have more pressing modes and fit both right and left hand individuals, enabling it works well for almost all diluted chemicals. Adjustable nozzle provides gently shifting between mist and stream patterns. Small size of droplets are distributed on leaves of plants and surface of objects equably to realize an idea effect.