I am shocked to find out that Bikom helmet strap clips are not an option to buy. All of my helmets have thick straps and it took some work just to get the clip on. I was set to purchase additional clips for all my helmets and apparently, out of all the replacement parts available, this singular plastic piece is not an option. Lose the clip, the Bikom is useless. I am on the fence if I should just return it. I have summer and winter cycling helmets. I am not purchasing a second Bikom for this.