Original feeling Cement lucky four-leaf clover - sure to win in the exam - diffuser Stone

I need concentration~~ Keep everything I read in my mind~~ Recommended essential oils for improving concentration: peppermint, lemongrass, grapefruit Drop the essential oil on the diffuser stone and place it in your bag or next to you to make your head clearer~~ Color: Each piece is purely handmade, so there will be some color differences or gradients. Shipping colors are random. Size: Love shape Cement 1.4*1.4*1.1cm, 4 pieces in total. Material: Environmentally friendly Cement made in Taiwan. The reservoir sludge has undergone modification technology, making it safe and harmless, and it also contributes to the environment. Note: There may be pores on the surface of the product, which are characteristics of the Cement material and are not defects. Origin: Taiwan