mac的彩妝問題

http://www.maccosmetics.com/templates/products/sp.tmpl?CATEGORY_ID=CATEGORY15114&PRODUCT_ID=PROD1519

http://www.maccosmetics.com/templates/products/sp.tmpl?CATEGORY_ID=CATEGORY15114&PRODUCT_ID=PROD2748

http://www.maccosmetics.com/templates/products/sp.tmpl?CATEGORY_ID=CATEGORY15114&PRODUCT_ID=PROD7283

教我一下這三種差別在那?
分別的作用又是什麼??