Abstract: A press-control retaining device includes a casing, the casing having two engagement flanges disposed at two sides, a retainer member supported on a spring inside the casing and adapted for securing to an external object, the retainer member having a substantially -shaped bottom positioning base supported on the spring and two springy arms upwardly outwardly extended from the bottom positioning base and adapted for clamping on an external object, the bottom positioning base comprising two first hooked portions bilaterally disposed at a bottom side, two stop flanges bilaterally disposed at a top side, and two second hooked portions respectively spaced between the first hooked portions and the stop flanges, and a slide coupled to the retainer member between the stop flanges and the second hooked portions.

Abstract: A fabric strap retainer having a back insertion hole at a back side thereof for the insertion of two fabric straps in a crossed manner, two post-like stop ends at two sides of the back insertion hole, a partition column disposed on the middle in flush with a front side thereof, two release holes respectively extended from the back insertion hole to the periphery thereof at two sides of the partition column, two hollow engagement units respectively forwardly extended from the release holes to the periphery thereof at two sides of the partition column, the hollow engagement units each having two series of teeth respectively disposed at top and bottom sides thereof.

Abstract: A buckle includes a casing of substantially U-shaped cross section. A toothed engagement strip is adapted for inserting into the casing. A locking plate is pivoted to the casing and turned at the locking position where the locking plate engages the teeth of the engagement strip to stop the engagement strip from backward movement relative to the casing and the unlocking position where the locking plate is disengaged from the teeth of the engagement strip for enabling the engagement strip to be removed from the casing. A fine adjustment handle is pivoted to the casing and adapted for turning by hand to move the engagement strip forwards relative to the casing after the engagement strip has been locked by the locking plate.