HDN 302 - 12 SPR are made from finer , thinner wire 0.45 mm . They are recommended for smaller fish : of course , you must use a finer rod, tippet and etc.
DOHIKU hooks are made from a high carbon steel, which is hardened and tempered according to an exacting formula that makes a long life for them. Of course, they are chemically sharpened.
Very impressive thread for body ,thorax or tag ( tip ). We recommend it for flies like Red Tag, Yellow Tag, Soldier Palmer, Sedge, terrestrial and similar insect. We also recommend it as " starter " .
1 spool - 12 meters or 13 yeards.