Abstract: A fastening device includes a male part secured to a first component and including a plate member, a female part secured to a second component and presenting a slot for inserting the plate member, a friction retainer including a friction zone and movable between a locking position, where each friction zone is in frictional engagement with the plate member, and a releasing position, where the plate member may be removed from the slot, a biasing component to bias each friction retainer towards the locking position so as to prevent the plate member from moving. Each friction retainer is composed of a magnetic material so that a magnetic force can move each friction retainer towards the releasing position and against the biasing component.

Abstract: A pronged band connector is adapted for securing a flat elastic exercise resistance band to an adjacent structure. The exercise band has a length, width, and thickness. The exemplary band connector comprises a base and a plurality of spaced-apart elongated rigid prongs. The prongs extend substantially perpendicular to the base, and are adapted for receiving a portion of the exercise band between adjacent prongs. A length of each prong may be greater than the width of the exercise band.