By the way , the Ecco World Class line uses a threaded spike .
They will need to be tightened and checked regularly , as instructed , especially when new and during the first few wearings ( but wise in any case regularly thereafter ) .
By the way , the Ecco World Class line uses a threaded spike , and they will need to be tightened and checked regularly , as instructed , especially when new and during the first few wearings ( but wise in any case regularly thereafter ) .