The biggest pieces are the limb dampeners. On my vert bows, I find they work best where the limb is thinnest inboard from the thickened area for the yoke on a solid limb bow. On the split limb model, you can move them around but the solid limb kind, you figure out where you want them, take the covering film off the adhesive, then stick them on the limb. The two smaller pieces are for the string. You need to have the bow pressed, then you slip them in the string fibers, 1/2 the fibers in each side. The string sides go between the 4 "bumps" (across the shorter, thicker way, leaving the narrow, longer part to absorb the vibration. The last little piece is to quiet the metal piece that holds the arrow down on the track.

 

The two little thingies are string 'silencers' they go on your string (you'll need a string splitter to install them). The two big thingies are Limbsavers they go on the limbs. Keep them as close to the riser as possible to avoid loss of speed. The one little thingy looks like a arrow retention spring silencer, it goes on the arrow retention spring. It may be the only thing that makes any difference in the 'loudness' of your bow...and it won't be much. If you haven't already heard, there is no way to (silence) a crossbow, at least not to the level of a vertical bow or so a deer won't hear it. Your 'silencer kit' will likely leave you disappointed and the maker enriched....at your expense. Sorry to say.