I recommend the Life Gua Sha.

I have been using this gua sha tool very, very well since purchasing it, and I chose the Bodypixel product. First of all, it is wide and convenient to use. If I use it to refine my facial contours right after waking up in the morning, the swelling just goes down completely. Pressing firmly on my calves feels incredibly refreshing, and pressing the pointed tip on my scalp feels just amazing! It feels like using gua sha several times a day has become a habit.