The Godrej Rim Lock Twinbolt Ultra XL+ is a premium mechanical door-locking solution designed for wooden entrance and balcony doors. It incorporates a multi-row 14-pin cylinder mechanism with over 100 million key combinations, making the locking system significantly more resistant to picking and unauthorised key duplication. The lock uses high-precision computerized dimple keys, which further enhance key security.

Its 21 mm double-throw bolt features a 20% wider and thicker construction, providing increased mechanical engagement with the door frame. The lock body uses a robust metal construction, while the electroplated finish on the lock body and receptacle/striker plate provides durability. The supplied keys are rustproof brass, reversible, and designed with larger heads and coloured rubber buttons for easier identification.

For additional security, the safety catch knob can be engaged from inside to prevent the door from being opened externally, even with the correct key. An integrated anti-lockout system with puller ring helps reduce the possibility of accidentally locking the keys inside. The lock also supports one-hand operation, with the latch retractable through the internal knob.

The Twinbolt Ultra XL+ is available in configurations for inside-opening and outside-opening doors, supporting both left- and right-handed doors with 25–60 mm thickness and a 60 mm backset. The variants are available in Satin Silver and Antique Brass finishes, with 4 keys included and a 5-year warranty.