Abstract: An adjustable strap buckle is comprised of a barrel member detachably positioned in a hook member. The barrel member is comprised of a tubular housing with a spring loaded push button projecting from an open end. A button hole is positioned through the button, and housing holes are positioned through opposite walls in the housing. A strap is positioned through all the holes. When the button is released, the button hole is misaligned with the housing holes to bind the strap. When the button is pressed, the holes are all aligned for releasing the strap for sliding. The hook member is comprised of spaced apart hooks attached to an anchor member for attaching to clothing, a bag, luggage, etc. The barrel member is transversely positioned inside the hooks to secure the strap, wherein the segment of the strap extending from the barrel member is also positioned between the hooks.