Abstract: A device (2) which can be formed into safety link comprising a flexible, longitudinally elongate member having engagable first and second portions (4, 6); the first end portion (4) including a recess (8) which is open-ended in the longitudinal direction and defined, at least in part, by a pair of opposed interior side walls (10, 12); the second end portion (6) having sidewalls (18, 20) that are complementary to the sidewalls (10, 12) of the recess (8) so that the second end portion (6) is a push-fit in the recess (8); at least one pair of the complementary side-walls being non-planar so as to retain the first end portion (4) in the recess (8) against a longitudinally applied force until it is sufficient to move the side-walls (10, 12) of the recess (8) apart to release the second end portion (6) from the recess.