Full Details from Amazon.com : http://www.amazon.com/gp/product/B00MY3TLDI?tag=onigi-20
Tt eSPORTS Keyboard Metal Caps 38 keys (EA-MTC-AKCSIL-37)
Zinc alloy The METALCAPS are made of a Zinc alloy for overall durability and a solid feel while typing
Anodized and UV Coated The METALCAPS are anodized and UV coated to protect the finish over long use
Comes in 4 varieties The METALCAPS are offered in 5-key or 38-key packs in the following combinations