We used this shower barrier as a lip in our new walk in shower as the shower base did not hold the shower curtain in place and the water would leak out onto the floor. This dam is tall enough to keep the shower curtain in place and also the water. It is made of vinyl so you won't hurt your foot walking over it. The attached adhesive holds well but we caulked on both sides anyway just to keep water from leaking under but you don't have to do this. It is very stable in place and is easy to cut to size.