Slider Shell-Copper CloudSlider Shell Copper Cloud Slider Shell Copper Cloud is a resin shell, and it uses hand polishing, which is rarely used in resin materials, so that each shell has a unique pattern. Slider Shell Copper Cloud has a crystal clear appearance, bright colors, and a very light texture. It is a shell suitable for carrying around. TIP: All Slider Shells need to be matched with the Slider Core before they can be assembled and played normally.