The M67 Defensive Fragmentation Grenade is the standard hand grenade used by both the United States military and various forces around the world. Its baseball-like shape was designed to aid in throwing the weapon. The weapon has a 5-second fuse upon triggering. Also known as fragmentation (frag) grenades, these are the most common indirect weapon of attack among troops. Grenades have the military slang name of "pineapples" due to the similarly-shaped WWII-era grenades, but even though the M67 no longer adopts this design, the name has since stuck. England and some other countries still keep the "pineapple" design grenades.