Wat does a runic pentacle signify?

am a wiccan practitioner.i got this runic pentacle. i dunno but this one thing caught me so much tat i immediately bought it,...but i dunno wat it signifies,..it has elder futhark engraved over its circle,my pentacle exactly luks like this one .....................a href="http://www.google.com/imgres?imgurl=http://www.lythastudios.com/beads/xcel/pics/mp120.jpg&imgrefurl=http://www.lythastudios.com/beads/xcel/pentacle.html&usg=__bBgcIZPevUrDWBF9sUakKenFRUQ=&h=157&w=141&sz=8&hl=en&start=0&zoom=1&tbnid=Zq3ZoVtLsblU_M:&tbnh=124&tbnw=109&ei=NCUITrDWNMaHrAfsooSXDA&prev=/search%3Fq%3Drunic%2Bpentacle%26hl%3Den%26biw%3D1024%26bih%3D677%26gbv%3D2%26tbm%3Disch&itbs=1&iact=hc&vpx=478&vpy=115&dur=1862&hovh=125&hovw=112&tx=92&ty=109&page=1&ndsp=27&ved=1t:429,r:3,s:0&biw=1024&bih=677..." rel="nofollow"http://www.google.com/imgres?imgurl=http…/a