War arrow with sharpened trade black for hunting and attacking. A target arrow with a point. The blunt tips are for hunting small game and birds. These points will kill or stun but do not stick in trees should you miss.
The raw sinew strips wrapped around the arrow protected the notch where the bow string went and kept it from splitting out or opening and ruining the notch. The women made the sinew by chewing it when fresh and they were able to make any size. It dried and shrunk in the sun and made the arrow that much stronger.
These are some of the same arrows with the owners colors painted on the arrow. This is still done today because it makes the arrows easier to find when they skid off under brush and grass.