Abstract: A separable buckle for interconnecting two parts of a strap or other tension member comprises a first buckle member adapted to be attached to the first strap part and a second buckle member adapted to be interconnected with the first buckle member and to slidably receive the second strap part. When interconnected, the two buckle members are relatively pivotable about a transverse axis with the first buckle member acting as a two-armed lever, one lever arm of which is engageable with the second strap part on the second buckle member so that the second strap part can move in one direction relative to the second buckle member but is prevented from moving in the opposite direction by said one lever arm. The second buckle member comprises a reverse bent hook portion including a hinge element receptive of a hinge element of the first buckle member.