In cricket, the stumps are the three vertical posts that support the bails and form the "wicket. Stumping or being stumped is a method of dismissing a batsman.
The umpire calling stumps means the play is over for the day.
The overall width of each wicket is 9 inches (22.9 cm). Each stump is 28 inches (71.1 cm) tall with maximum and minimum diameters of 11⁄2 inches (3.81 cm) and 13⁄8 inches (3.49 cm). They have a spike at one end for inserting into the ground, and the other end has a U-shaped "'through groove' to provide a resting place for the bails. In junior cricket the items have lesser dimensions.
Each stump is referred to by a specific name:
These names are relative to the batsman, so a right-handed batsman's leg stump becomes the off stump when a left-handed player is batting.
In modern professional play, the stumps are often branded with a sponsor's logo. Although they are too far away from spectators to be seen, such logos are visible on television coverage.
For professional matches, often one or more of the stumps is hollow and contains a small television camera. This is aligned vertically, but can view through a small window on the side of the stump via a mirror. The so-called stump-cam gives a unique view of play for action replays, particularly when a batsman is bowled.
A recent innovation are stumps and bails embedded with red "LEDs, which flash when they are completely dislodged. Invented by an Australian engineer and trademarked as "Zing Bails", they were designed to aid both umpires with run-out or stumping decisions as well as provide distinctive images to television coverage during "day-night matches. LED stumps were first used at the "2014 ICC World Twenty20, and have since become commonplace in major white-ball matches like ODIs or franchise T20 leagues.  They have also been used in day/night Test matches.
Stumps is also used as a term to mean the end of a day's play, e.g. "The umpires called stumps" means that the "umpires have declared play over for the day. At the end of a session, i.e. before lunch or tea, the umpires will remove the "bails; at the end of the day's play, the umpires will also remove the stumps.