Size of Chakra rough stone is about 15-20mm
Size of Chakra palm stones is about 14-20mm
Size of Chakra palm stones is about 1.0"x0.79"x0.3" (25x20x6 mm)
Set of 7 chakra stone include:Amethyst (Crown Chakra) Carnelian(Sacral Chakra), Yellow Jade(Solar Plexus), Green Aventurine (Heart Chakra), Lapis Lazuli (Throat Chakra), Clear Crystal(Third-eye Chakra), & Red jasper (Root Chakra).
Use for reiki, healing, meditation, chakra balancing, or ritual. Can also be used in conjunction with a chakra wand. Each spiritual healing stone has a specific color and psychic vibration, emitting positive energy to attune and cleanse your aura.
The picture is only for your reference, The stone you received will be similar because of the natural stones.