r they diff sizes or they just look like some r bigger cause closer to the camera ? also hats on the back side that is how to attach them to whatever ,is there a hole , a raised indent like buttons attach , curious or r they completely flat on back ? very pretty is there a finish coat after the paint or is it not paint at all instead maybe the dye is already mixed the metal when its made ? sorry so many questions BUT Needs to know B 4 Purchasing THAT IS IF THE OTHER MEMBER Doesnt keep their word on the GIN ( SORRY WORDED THAT WRONG NO OFFENSE OR RUDENESS MEANT I PROMISE IM JUST NOT GOOD WITH WORDS Or using this keyboard Ahhhh need new one that wont randomly change to caps thanks for your patience /reading