hold the cotton thread with a finger

thurst the glass barrell all the way, but do not apply too much strength to avoid breaking the glass


if this cannot be obtained by means of the supplied thread (double twisted), use one of the following options:

1) split the threat and use one strand only

2) double the thread by holding one end and twisting the other

3) insert a bit of the supplied thread, then split it and use one strand only


finally, cut the excess thread

in case of difficulties, contact us and we'll replace the refill at shipping cost only