good product but watch 6

fast delivery, doing their work well but lacks a little box to store very little one can lose them easily. once in place, there is little material as to be able to remove so if you do not nail or something that can help you, some difficulty to remove them will arise. seen that have plastic parts, with time I imagine the plastic deforms (the part on which it acts to remove the plug) and after we have is much more difficult to remove or break this the party and suddenly could no longer withdraw.