Simply center 3 spikes on the weed, twist and remove with spring-loaded plunger. Made of steel tubing, with replaceable 3-inch and 4-inch steel spikes that can be positioned three different ways to adjust for small and large weeds. Upright handle allows you to weed without bending. Works great on crabgrass, goosegrass, dandelions and all bunch-type weeds and grasses. 41 in. (1 m) tall.