клетка такая примерно, но больше - http://www.google.nl/imgres?imgurl=http://images03.olx.com.ua/ui/3/21/15/61331615_1.jpg&imgrefurl=http://kharkov.olx.com.ua/pictures/iid-61331615&usg=__j6OZ1m6wuB7BZlMoieUb8-ndf04=&h=298&w=425&sz=18&hl=nl&start=20&tbnid=lwBKfo_PXHkPyM:&tbnh=128&tbnw=177&prev=/images%3Fq%3D%25D0%25BA%25D0%25BB%25D0%25B5%25D1%2582%25D0%25BA%25D0%25B8%2B%25D0%25B4%25D0%25BB%25D1%258F%2B%25D0%25B3%25D1%2580%25D1%258B%25D0%25B7%25D1%2583%25D0%25BD%25D0%25BE%25D0%25B2%26um%3D1%26hl%3Dnl%26sa%3DX%26biw%3D1280%26bih%3D582%26tbs%3Disch:10%2C570&um=1&itbs=1&iact=rc&dur=477&ei=Z2VpTImdItGJOMHC4bkF&oei=XWVpTNa7MJWL4Qb44rWZBA&esq=2&page=2&ndsp=21&ved=1t:429,r:16,s:20&tx=92&ty=75&biw=1280&bih=582