
"TOUGH GLASS" for Xperia 1 IV/V is made of Dragontrail® two-stage hardening glass developed by AGC®, Japan. It
has 6 time hardness compared with ordinary glass, and it's also anti-scratch, anti-reflection, and hard to break due to
the hardening process on the edges.
Also, the surface is coated with multiple layers, providing not only easy operation and a comfortable touch but also
resistance to smudges, fingerprints, sebum, makeup, and other adherents, which can be easily wiped away.
"TOUGH GLASS" series products all come with DIY attaching tools for easy attachment with 0 failure.
This product has obtained the "Made for Xperia" certification from Sony, ensuring its compatibility and reliability. As
the only certified accessory in the protective frame category, you can use it without concern.

Two-stage hardening process, Enhanced Strength
For regular LCD glass, thermal hardening involves heating and then rapidly cooling the glass to create internal
and external stresses, generating a state of compression on the surface and within. This process enhances its
resistance to impacts and distortion.
In contrast, the "TOUGH GLASS" series utilizes a secondary hardening process, which includes both thermal
hardening and a special chemical hardening treatment. The chemical agents penetrate the micro-scratches
formed during thermal hardening, further enhancing the glass's hardness.




Glass Protector installation Guide
First peel off the old film on the screen
1. Use the provided alcohol pad to wipe the surface of the phone screen, then use the eyeglass cloth to clean again
2. Attach the DIY tool to your phone
3. Peel off the protective film from the glass protector
4. Align the glass protector along the edges of the DIY tool
5. If there are any remaining air bubbles, gently push them outwards
6. Remove the easy application tool (make sure not to remove the glass protector)
Easy to apply and with a pleasant touching feel
The surface undergoes a multi-layer frosted treatment, achieving a comfortable and responsive touch experience.
While experiencing excellent operational sensitivity, it also resists stains, allowing for easy removal of fingerprints,
sebum, and cosmetic residues with a gentle wipe. Even in the event of breakage, it has undergone special film
treatment to prevent fragments from scattering or causing harm to your fingers.




Product Information
Product Name:TOUGH GLASS Full Transparent Glass Screen Protector For Xperia® 1 IV/V
Brand:Dëff®
Model:DG-XP1M4M3DF (Full Transparent)
Material:Glass, Thin Film (Anti-Splash Adhesive)
Compatible Model:SONY Xperia 1 IV/V
About Dëff®
The company name "Dëff (ディーフ)" is taken from the acronym of "Design Evolution For the Future". Born for the
innovative design of the future, for the brand spirit of Deff, it represents our hope to meet the best experience of
consumers with highly original and innovative human factors design, so as to create a "more convenient and
comfortable future" expectation . Not only for simple usability, but also for functional aesthetics and the uniqueness
of special materials, and then each product is born with the uncompromising precision design and advanced
manufacturing technology of Japanese craftsmen.

- Xperia® is the registered trademark owned by Sony Group Corporation.
- DuPont® Kevlar® is the registered trademark owned by DuPont Inc.
- AGC® is the registered trademark owned by AGC Inc.
- Other product names and that with company profiles are registered trademarks owned by each companies.
- We have the complete right to change product specification.

