Illustration of 86 key partitions:
Height of R1: apply to the primary key area ZXCVBNM or keypad 123area and the WASD direction keys
Height of R2: apply to the primary key area ASDFGHJKL; keypad 456
Height of R3: apply to the primary key area QWERTYUIOP ; keypad 789 and Delete key, End key, Page down key
Height of R4: apply to ESC keyboard F area (F1-F12); Locking area (Print Scroll Pause); Number area (above the letters area) and keypad area Num Lock/ Big rows: suit for TAB, Shift, Ctrl, Alt, WIN, Backspace, Enter, Case, Blank
Generic Brand:
R1, R2, R3, R4 can be used in all mechanical keyboard Big rows are suit for the whole series of FILCO, NOPPOO 104, 7G 6GV2, PLU-87, the series of PLU-G3000, DUCKY, DAS.
The key cap "A" "S" "D" is the height of R2,and the "W" is the height of R3. The pattern of "R2","R3" is on the inside of the metal key caps. Please have a look before you install the caps.
Installation instructions:
There has many elements can change the tightness of the axis body of mechanical keyboard. Some brand is mechanical keycap itself is tight, so they will clip tighter the axis body, and feel loose when add the other caps.
Frequency plug the keycap will also impact on the axis body. While the metal mechanical keycap is adopting the unique design of open type, it can be adjust the tightness.
1. The way to solve the loosing keycap: the first way is glue a layer of transparent adhesive on the axis body or it can also put a thin napkin.; the second way is use a needle nose pliers gently clip the cross heart and suggest slowly clip, try patiently.
2. The way to solve the tightly keycap: use a slotted screwdriver to gently clip the cross heart and suggest trying it patiently.
Package Included:
One set of the silver WASD key caps with backlit

• Pure metallic bonding cap,Heavier than general keyboard.With A Plastic Key Puller As A Gift(Random Color)
• The material is zinc alloy, with electroplating in surface and never fades.
• And this keycap features the transparent characteristic, it will give you the cool feeling when you use.
• The internal structure: mainly the internal of axis is smooth; the consistent degree is basically as same as the plastic keycap; the four sides of button have been perfectly done without potholes and other defects; the button of each key has named (such as: R1, R2), which is convenient for player to identify.
• And this keycap features the transparent characteristic, it will give you the cool feeling when you use. Package includes: 1* gold WASD key cap backlit set +1*key puller

Pure metallic bonding cap,Heavier than general keyboard.With A Plastic Key Puller As A Gift(Random Color)Yi Shuntong