Anti-bacterial - As opposed to jade and rose quartz, stainless steel is non-porous, which prevents bacteria build-up that can transfer to your skin Self-cooling - Naturally cold to the touch, you don't even need to put it in the freezer Eco-friendly - Our tools are made with recycled material and are 100% recyclable, and our beautiful packaging is made with recycled cardboard Durable - Jade and rose quartz gua shas easily break if dropped but these tools will last forever