in order to fit with your lightstick, measure 1. the length of the glass sphere (you have to make chains to get that length - mine is 24 cm ) 2. the length of the circular belt part (when you connect the two ends that length must be equal to your lightstick's belt - mine is 17 cm ) and 3. the height of the belt part (mine is 2 cm ) Here is the example of measuring lightstick 0:53 Hope you get the point, sweetie ^^ May your lightstick cover fit with your lightstick >