[Bill McIntyre]

The string on the Riffe tip is intended to be tucked under your bands to hold the cable tight and keep the tip from falling off. Obviously, the gun must be cocked first. This design also requires that your shaft and tip have enough overhang from the muzzle so that the cable is held taught when the string is tucked under a band. And if you have so much overhang that the string can't reach the bands, then you need a longer string.

Ordinarily I would include a photo, but the Riffe tips are not my favorites, so I sold them and am using other brands.

Edit- I see Bill typed faster than I did and covered things I didn't. Yes, that slide ring goes on to the shaft before you screw the adapter on the end of the shaft. Your mono shooting line should attach to a hole in one of the cocking fins on the rear of the shaft if you have a Riffe shaft.