▁The ▁we ave ▁gives ▁a ▁squ ared ▁appearance ▁to ▁the ▁fabric ▁( similar ▁to ▁A ida ▁cloth ), ▁with ▁distinct ▁holes , ▁making ▁it ▁easy ▁to ▁count ▁and ▁work ▁on . ▁ ▁Thread s ▁Trad itional ▁Hard anger ▁emb roid ery ▁is ▁worked ▁with ▁a ▁thread ▁colour ▁that ▁matches ▁the ▁fabric , ▁usually ▁white ▁or ▁cre am . ▁Using ▁self - col oured ▁thread ▁enh ances ▁both ▁the ▁sculpt ural ▁nature ▁of ▁the ▁st itch es ▁and ▁the ▁details ▁in ▁the ▁intr icate ▁filling ▁st itch es . ▁Many ▁contemporary ▁designs , ▁however , ▁do ▁make ▁use ▁of ▁col oured , ▁var ieg ated ▁and ▁over dy ed ▁threads ▁to ▁great ▁effect . ▁ ▁Two ▁weights ▁of ▁Pear l ▁( per lé ) ▁cot ton ▁are ▁generally ▁used . ▁On ▁normal ▁ 2 2 - count ▁Hard anger ▁fabric ▁this ▁is ▁usually ▁Pear l ▁cot ton ▁# 5 , ▁a ▁heav ier ▁weight ▁used ▁for ▁sat in ▁st itch ▁Kloster ▁blocks ▁and ▁mot ifs , ▁and ▁Pear l ▁cot ton ▁# 8 , ▁a ▁th inner ▁thread ▁used ▁for ▁more ▁del icate ▁filling ▁st itch es ▁and ▁other ▁surface ▁details . ▁On ▁fin er , ▁higher ▁count ▁fab rics ▁the ▁combination ▁of ▁# 8 ▁and ▁# 1 2 ▁threads ▁is ▁often ▁more ▁suitable . ▁ ▁St itch es ▁and ▁techniques ▁Hard anger ▁emb roid ery ▁uses ▁sat in ▁st itch ▁blocks ▁known ▁as ▁Kloster ▁blocks , ▁consisting ▁of ▁ 5 ▁parallel ▁sat in ▁st itch es , ▁worked ▁over ▁a ▁group ▁of ▁