I am posting this for the benefit of members who use this for hearing protection. The foam tip replacement pack from Walkers with three different sizes of tips is a joke. As you get two sizes you do not need we all know that. I recently purchased a five pair pack from Sweetwater.com. I use the small size so here is exactly what I ordered. Brand Westone True-Fit I Size Blue They work perfect a little softer than the original a better fit for me and only $14.99 plus tax free shipping for five sets per pack. Hope this helps some of you out there.