Safety 1st Child Restraint Vehicle Anchor Bolt

SAFETY 1ST CHILD ANCHOR BOLT KIT
A tether bolt is installed into the floor or roof (vehicle dependant) of the vehicle and is the connector to which your tether strap connects.
This Safety 1st Anchor Bolt Kit is used to securely connect a snap hook style tether strap that your child restraint requires to be installed. 

Older cars have a bolt installed in the rear of the car, while new cars have a small bar fitted to the back of the rear seat.  If your car does not come with a tether bolt you will need to install one. The bolt must be secured to a strong part of the vehicles chassis.  This can be done by yourself or by a mechanic.