Quantity: we offer 10 pairs, 30pairs , Please choose the quantity from the "options". Attention：with hook and no hook, see the picture Size:about 32*16mm About the mixed color, please choose the color that you like. Normally i will send random color to you if you won't choose the color. Please choose the color from the "options". converse : 1 inch = 2.54cm or 1cm = 0.393 inch