Abstract: A buckle device for shoes includes a base member secured on a first upper side portion of a shoe upper, a detent device pivotally and resiliently mounted on the base member having at least a pawl formed on a bottom portion of the detent device for locking a ratchet toothed strap secured to a second upper side portion of the shoe upper with the strap insertable through the base member, and an adjusting device resiliently secured on at least a cantilever mounted on the base member to be normally separable from the ratchet toothed strap for a fastening of the strap on the base member as locked by the detent device, and the adjusting device operatively driving the ratchet toothed strap step by step for microscopically adjusting the tightness of the strap and the shoe to be worn by a user.

Abstract: An in-line roller skate includes: a mounting plate having a footwear or boot secured on an upper surface of the mounting plate, and having a plurality of arcuate guiding rails respectively juxtapositionally transversely formed on a bottom of the mounting plate, with a longitudinal axis defining at a center of the mounting plate and projectively developing a vertical plane from the longitudinal axis towards a skating surface under the mounting plate; a plurality of cantilever members each slidably engageable with and movably adjustable on each arcuate guiding rail on the mounting plate; and a plurality of wheels each rotatably mounted on each cantilever member, whereby upon an angular adjustment of each cantilever member on each guiding rail, each wheel as rotatably mounted on each cantilever member will be angularly biased from the vertical plane for obtaining a preferred angle for the skater for ergonomically enhancing a skating maneuverability.