Akko pudding keycaps (OEM Profile) are made for RGB gaming.. The top of each keycap is made of durable PBT (polybutylene terephthalate) material. This high-quality construction guarantees a smooth and satisfying typing experience, while the transparent PC bottom allows the RGB lighting to shine through brilliantly.. ABS + PC. The top layer of the keycaps uses ABS. The bottom layer of the keycaps uses PC for better translucency. Perfect for RGB keyboard. The keycap set is shine-through and is compatible with 60%/TKL/full-size keycaps.. **This product is a keycap set, the kit and switches are for illustrative purposes!