This keycap set has 143pcs pudding keycaps(contain 1.75u shift) and 1pcs keycap puller It can fit most US UK Layout 61 64 68 84 87 104 108 mx switches mechanical keyboards Excellent double shot craftsmanship, shine through the keycaps no light leakage The height is OEM profile,the thickness is about 1.3mm Note: There are additional keycaps compatible with razer blackWidow series, also compatible with corsair strafe/k65/k70/k95 and logitech G710.