Elastic protective ring and identifier, adaptable to heads of keys and latches, characterized in that the ring is provided in its central recess with an internal annular channel, determined by its peripheral edge or rim, in whose plane a notch has been made or open area, to give way to the serreta of the key or latch, in order that the ring, by virtue of the elasticity of the material that constitutes it, can be adjusted against the edge of the head of the key, adopting the exact configuration of it. Each ring has indicators and contrast elements to allow the identification of a certain key and is equipped on both the front and the back, with several strokes or points in relief, which establish a non-slip friction to avoid excessive mobility of the assembled keys on a key ring, which when hit produce noise and cause discomfort to the user. (Machine-translation by Google Translate, not legally binding)
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