These 2 space relegendable DCS keycaps have 2 MX mounts spaced 0.750 inches apart, they are DCS style Row 1 (only available in row 1). They are meant to span across 2 single space key positions, either vertically or horizontally. These are often referred to as point-of-sale (POS) style keys. Pack includes 4 clear tops and 4 opaque bottoms.