Exclusively made to fit Dexis sensors. The unique design lets you take all your bitewings and periapicals without removing the holder from the sensor. The patented design can be used with an arm or a tab.The thin plate of the Rayzor has five positions for an arm or a tab. The positions are fixed, and you will always use the full area of the sensor. No slipping sensor, it stays in place even if the patient bites down.