Gravel, small stones, or pebbles. A corrupted form of sazare 細 meaning tiny stones. Jari have been given various names depending on their color, shape, and location. These include blue soybean pebbles aodaizu jari 青大豆砂利 and red bean-shaped pebbles azuki jari 小豆砂利, Tamagawa gravel tamagawa jari 玉川砂利, or Shinagawa stones shinagawa jari 品川砂利. Gravel may also be derived from volcanic ash or lava. Traditionally, gravel had many uses including: garden paths, sometimes in conjunction with large stones; simulating flowing streams in dry gardens; ground cover raked into patterns in temple gardens; courtyards, etc. Gravel was also used as part filler for castle ramparts, temple building podia, etc. Small stones were also used to catch the rain water flowing off roofs.