Features: ABS and silicone material, environmentally friendly, lightweight, sturdy and durable; Decorative and elegant keycaps can better decorate keyboards. For mechanical keyboard universal; Adaptation: Models such as 61/68/75/84/87/89/96/98/100/104/108 keycaps testers. The storage box is PC material, which is durable, convenient to use, and reusable. The storage box protects the keycaps from scratches. Specifications: Material: ABS+PC Size:approx 6x6x2cm/2.36x2.36x0.79in Types: A/B/C/D Optional Quantity： 1Set (4 Keycaps with 1 Box） Thickness：2.45mm Package Includes: 1 Set Keycaps with Box note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.