A is a type of bokken, a wooden practice sword originating in Japan and used in Japanese martial arts. Suburi (ç´ æ¯ãÂÂ; literally, "basic or plain swing") means "practice swing"; a suburità  is therefore used to practice sword-swinging.
The suburità  is much thicker at the blade than the handle which makes the suburità  much heavier than a normal bokken. Suburità  are used for practicing suburi (sword swinging exercises) and kata (prearranged exercises). The weight of the suburità  is used for strengthening and conditioning in addition to development of spirit. The suburità  is used to perfect individual technique as well.
A suburità  is commonly around 115 cm (45 in) in length, with a mass of 1 kg (2.2 lb). However, these bokuto can vary widely in size and weight. Suburità  generally do not include a guard.
Legend has it that Miyamoto Musashi carved a bokken that resembled a suburità  out of a boat oar as he traveled to his famous duel with Sasaki Kojiro, whom he supposedly killed.
A is a bat used in aikido for strength and suburi training. Despite being only overall, with 10 inches for the handle, the "blade" is a large lump of rectangular wood, with its cross-section being a square with dimension of three square inches, and has an overall weight of 4 to 7 lbs.
By designating one corner as edge, an aikidoka can use it as an even heavier suburità Â, practice suburi, kata, hasuji (edge-angle) and tomei (swing stopping), and learn the bounce-back of the sword by practising against tenu-ichi, now typically a tyre stood upright on a concrete base.
As it is designed towards aikido and strength training, specifically for getting used to the weight of a heavy-handled object, it does not resemble a sword in shape, length, or mass. Thus, unlike suburito, it is less effective for learning the katana's cut, and is not suited for contact with other swords.