These are dogshit. They make it impossible to put your shoes on and off. The only way is to loosen the laces up so much that the shoes aren't comfortable anymore. Totally baffling and worthless product.
It's hard to find the sweet spot between "not too loose" like you're gonna lose a shoe just by walking and "too tight" so that you can't put your shoes on without ripping appart the skin off your fingers.
Plus, i want to put those anchors on dozens off my shoes, that's gonna cost me over 100 bucks just to turn them into slip-ons. Pretty pricey these lil pieces of, what, plastic ? aluminium ?