我看artbeads.com上很多的chain，就是不知道买哪一种。

1. 耳环和手链所需的chain有区别吗？ 

2. 除了其他的design，rollo chain和cable chain有什么区别，是每个环的方向相同或不同吗？做出来有什么区别么？

3. 一般链子上如果不加beads的话，买哪种的最好？如果链子上加beads的话是不是要买link比较大的？是不是就是每种后面列的measurements: link几乘几？gauge是干什么的？

能不能说的时候给个link？多谢多谢。

Most time, the chain for earrings is thinner, the bracelet chain are bigger. Well, this also depend on your design. I GUESS the rollo chain's rings are round and cable chain's rings are ellipse. I don't think there is a big defference. If you don't need to add beads on the braclet, I think the thicker chain or bigger chain is better, or the chain has some shape . Like:

http://artbeads.com/925ch46.html

http://artbeads.com/925ch40.html

http://artbeads.com/925ch22.html

IF you don't want to add beads, I also think the finished Chains are better.

http://artbeads.com/ss-brac1.html

http://www.firemountaingems.com/details.asp?PN=K073318JW

http://www.firemountaingems.com/details.asp?PN=K071568CH

If you want to add beadds on , you have to buy the chain with, as you said, the larger link . BUT, this isn't " the bigger, the better. In fact, you only need large enough holes to let the wire go through. If the chain too large, the links will be too big to deal with. I LIke these:

http://artbeads.com/925ch64.html

http://artbeads.com/925ch62.html

I like chains about this size.

Gauge is a unit of wire. As you see, all the chain made of rings( or links), All the rings made of wire. So the gauge can give you some idea how big the wire is which is made to the chain and how the chain will look like.

Gauge Inches Millimeters 10 0.102 2.59 11 0.091 2.31 12 0.081 2.06 13 0.072 1.83 14 0.064 1.63 15 0.057 1.45 16 0.052 1.32 17 0.045 1.14 18 0.04 1.02 19 0.036 0.91 20 0.032 0.81 21 0.028 0.71 22 0.025 0.64 23 0.023 0.58 24 0.02 0.51 25 0.0179 0.455 26 0.0159 0.404 27 0.0142 0.361 28 0.0126 0.32 29 0.0113 0.287 30 0.01 0.25 31 0.0089 0.226 32 0.008 0.2 33 0.0071 0.18 34 0.0063 0.16 35 0.0056 0.142 36 0.005 0.13 37 0.0045 0.114 38 0.004 0.1 Most time, the head pin or eye pin are 20-18 gauge. SO if you buy a small link chain, you should buy the large gauge wire or pins.