engagement foot 60 thereon the actuatable lever 50 also has a bias finger 62 extending unitarily from the hub of the lever 50 the bias finger 62 provides resistance to the release button 54 when the release button 54 is pushed radially inwardly with respect to the pair of housing portions 26 and 28 towards the spool 32 the bias finger 62 effects an outward resistance push onto the release button 54 through the opening 56 between the first and second housings 26 and 28 and it effects a bias radially inwardly as shown by arrow u201c a u201d in fig5 on the slot engagement foot 60 on the distal end of the rigid second leg 58 a single slot 64 is arranged across a portion of the perimeter of the rim on the rotatable spool 32 as shown in fig5 the slot engagement foot 60 of the actuatable lever 50 is biased inwardly so as to mate with that slot 64 the perimeter of the spool 32 fig5 and 6 show the spool 32 with an annular portion of its rim cut away for clarity of viewing a second biasing arrangement 70 is disposed on a pivot axis 72 as represented in fig5 and 6 the second biasing arrangement 70 comprises a first finger 74 extending from a hub 73 and is arranged to press against the inside.