4Pets crates fit very securely in the boot, full instructions are supplied.
The rear panel of the cage is designed to fit against the back of the rear seats. You then use the straps provided to secure the crate to the anchor points in the boot of your car. Four straps are included, and you can alter the length and position of these straps depending on where the tie-down/fixing points are located in your boot. The sturdy Strap-Fix system (2 straps) has a tensile force of 350 kg/ 770 lbs per strap.
Additional Velco strips on the bottom of the box ensure that it does not slip in the boot.
Replacement straps are available if you lose them.