This does not affect your right to an exchange or refund for faulty equipment.
The Petzl Pirana is an adjustable friction descender designed for canyoning. It has three rope installation options, to select the degree of friction before initiating a descent. A friction spur allows braking to be increased during the descent.
The plastic ring ensures appropriate connector positioning, to facilitate rope installation with the device remaining connected to the harness, limiting the risk of dropping it. A locking groove and an additional spur facilitate rapid creation of a tie-off.