If you have any product questions, please feel free to contact us, we will serve you wholeheartedly!Specifications:Size(L x W x H): 13 x 4 x 4cmWeight: About 88gUsage:- Removing the crown and stem:First, pull out the crown as you do when you change the time. The stem is made in 2 parts that connect and can be pulled out (with special key included). Remove the half-stem and the crown with the key.- Using the pump:Pull out the tube from the air pump completely. Press the plastic tip of the air pump against the watch case (or case tube). Hold the watch case tightly while placing your thumb lightly over the crystal and push firmly on the pump to "blow" the crystal out of the watch.Package Included:1 Pc x Inflator1 Pc x Metals Remover5 Pcs x Pump Head
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