Quick release, adjustable wall mount hardware.; Can be connected as a freestanding play area with optional extensions. (amazon.co.uk)
Also included in the bottom of the frame are (2) optional extension legs that are good when the unit is set up outside to provide additional support against wind. (instructables.com)
This option for, Massachusetts drivers only, provides optional extensions of coverage, including 24 hour roadside assistance, towing and rental coverage, accident forgiveness, excess liability coverage, trip interruption protection, and homecare coverage. (smartautoinsurance.com)