The tempered glass surface prevents the nails from being shipped and opened by layers. Also usable in bare nails, once wet.
The thermal hardening process gives you greater resistance and its surface is not worn out. Indicated to profile your nails with a smooth finish that will prevent the possible shipyard.
Project co-financed by the European Social Fund Asturias 2014/2020, within the Consolidation operation Ticket Empresarial 2016