Lock & Lock Glass. The package already includes a clip for double glass doors installation. Bisfree / Heat resistant glass / 4 side locking / Frying pan / Tumbler. Do you want to install or repair your door lock for your home? At A5Door.com, you can hire us for glass door services such as installation, replacement, and repair. We are sole authorised distributor for Samsung Lock & Smart Security Products. technical support and service. You can buy them anytime from our Singapore online store.