These tabs are fine for the jars and containers but they have a base too large for the plastic tea light cups. I wish Candle Science would invest stocking various sizes for wick tabs. When looking at the bottom of the tea light cup, there are 4 raised dots which the wick tab would be slightly elevated while pouring the wax causing the wax to seep underneath the wick tab. This is something I don't wish to contend with in my candle company. I need a wick tab with dimensions of 16-17mm base, 2.5-3mm hole, 7mm neck. I have purchased these before with another company however, you have to buy a roll of wick, which I have plenty of but not enough tabs. The cost of this route is about $25, this is expensive.