A pair of black, worm-shaped elastic laces that allow you to put your shoes on without tying a conventional knot.

A pair of black elastic ‘gusanillo’-style laces that allow you to put on your shoes without tying a conventional knot.
Thread them through the eyelets and adjust the tension until the shoes are secure without squeezing the foot.
Check the elasticity regularly. Do not tighten excessively if you have oedema, circulatory problems or reduced sensitivity.