One Touch and Pneumatic Pipe Joint Fittings has the feature of quick fitting. The Fittings ensures accurate jointing. The Fittings is offered in compact design. The Fittings has the feature that the tube can be fitted and detached easily, so that workability is remarkably improved and pressure loss is reduced. The Fittings has the feature that a large volume of compressed air can be fed with least pressure loss without air leak and approx sizes from 4 to 16 mm. The One Touch and Pneumatic Pipe Joint Fittings are suited to the pneumatic systems necessary for automation and labour saving.