Aluminum alloy material, treated with dye technology, the color is bright and not easy to fade. Crafted from metal materials, these keycaps offer longlasting performances for your mechanical keyboard. For keyboard enthusiasts and gamers alike, these metal keycaps provide a satisfying feel and enhances your game. Whether you're working on projects enjoys game, these metal keycaps add of to any setups. Perfect for customization and as unique gift, these keycaps a must for any keyboard enthusiasts. Process: not engraved Connectivity Technology:Touch Colour:A:Red Material:Aluminum Alloy Package Contents: 4 x metal keycap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.