I didn’t buy the pre-tabbed wick assemblies, the ones that come pre-assembled, because I wasn’t exactly sure what size candles I would decide to make. Buying the materials separately cost a little less anyways (just about $8 for 150 wick tabs and 100 feet of braided rope).
To assemble the wicks, cut lengths of the waxed rope for the candle. For ease of making the candle, cut a few inches longer than needed so you can trim the wicks to length at a later point. Secure one end of the wick rope into the wick tab base, and use needle nose pliers to pinch the metal tight.