This RAM Mounts Form-Fit (key-locking) holder is suitable for Zebra TC53 & TC58 with or without Rugged Boot.To insert the device, pull the upper part of the cradle upwards, insert the appropriate device. The spring-loaded design holds the device tightly and securely in the cradle.The back of the device holder is prepared to support a diamond ball base (not included).Product features RAM Mounts RAM-HOL-ZE17L-NP-2U:Compatible with the Zebra HandstrapSpring-loaded design for easy insertion and removalIntegrated Stylus holderWith or without Rugged BootLockable with keyAdditional information: Devices shown are not included in the delivery.Only the RAM-HOL-ZE17L-NP-2U holder is supplied.