seat belt super lock


Diono super lock close up.

Car seat installations can challenge the best of us, so here at Diono we aim to make things a little easier for you.


  • Versatile: the perfect design to fit most seat belts
  • Safe and Secure: locks the seat-belt to secure the car seat correctly
  • Strong Material: made of nickel plated, hardened steel, strong enough to lock the vehicle seat belt

98 in stock

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can the Super-Lock be used with any car seat?

Yes. The Super-Lock is designed to help secure any car seat using the vehicle seat belt.

how does it work?

The Super-Lock’s design holds the lap/shoulder belt in the lock position so car seats stay tightly secured.

what is the Super-Lock made of?

The Super-Lock is made of nickel and hardened steel.