Unlock a keyless life with the Bold Smart Lock. This Bluetooth enabled smart lock is designed for easy and safe access control. 100% keyless and convenient to use by phone with the Bold app, wherever you are. Safe and secure with a 3 Star SKG certification (SKG***), making it the safest lock for your home, office or business. Suitable for European door locks measuring up to 65mm inside, 30-45mm outside. Easily installed in under 5 minutes. Contents: Silver Bold SX-63 Smart Lock; Allen Key; Screws; Spacers; Quick Start Guide. Compatible with all standard Euro cylinders, this Bluetooth or WiFi enabled smart lock is designed for supreme safety and security, 100% keyless and controllable remotely with the free Bold app, wherever you are. The Bold Smart Lock has been rated with a maximum SKG certification (SKG***), making it the safest smart lock for your home, office or business.