Arkon's APVHBLOCK2T is an adhesive security plate that sticks to any device you want to protect with a security cable and lock (sold separately). The adapter also includes a Dual-T-Slot for mounting a Dual-T-Tab holder (sold separately), including Arkon's Slim-Grip Ultra Universal Smartphone and Midsize Tablet Holder (SM060-2), Mobile Grip 2 Universal Smartphone Holder (MG002WR), or Slim-Grip Universal Tablet Holder (TAB001). The plate measures only 3 3/8" x 1 5/8" (small enough for most any device) and uses durable and long-lasting 3M VHB adhesive. Just remove the red, peel-away backing from the plate and stick it onto your device. Then, insert the cable lock into the lock slot on the back of the plate and lock with key. The adapter plate works with Arkon's SP-IPMCL1 as well as any Kensington-style lock for laptops, tablets, monitors, and other devices (sold separately). The Dual-T-Slot included with the security plate allows you to mount any Arkon or third-party Dual-T-Tab holder. WARNING: Use caution and discretion when adhering APVHBLOCK2T to your surface or device. This product uses 3M VHB adhesive, which is designed to be a PERMANENT solution. Use of this plate may result in permanent adherence to the selected surface. Professional strength solvents or tools may be helpful in removing the adhesive. Arkon is not responsible for any damage caused to your vehicle or other surface due to the installation of this mounting disk.