Reusable Hot/Cold Neck & Shoulder Pad-6 Colors

So what are the actual dimensions of the damn thing? Looking at the pic of it just barely covering the pixie-sized girl, I am having doubts it will fit anyone larger than a 9 year old much less my 6’3" linebacker frame.
Product Dimensions: 16 x 6.5 x 0.5 inches

I’m in the same camp as Samandirie1. find some of these in the 22-24" range for us larger guys