Unique built-in alarm feature to alert parents that the gate has been left open or has been incorrectly installed. Alarm operated by 2 x AA batteries (not included). Pressure fit. Permanent-fix wall cups included. Two-way opening. Step-over bar. Triple locking mechanism. Steel frame. 90cm height, fits openings from 75 - 109cm wide. 109cm maximum width with extensions. Free safety pack via in-pack voucher (cost of GBP4.00 P&P). The Lindam Home Safety Kit contains a selection of 17 locks and guards to minimise the hazards in your home. Pack includes. 1 x Door Stopper. 1 x Multi-purpose latch. 4 x Corner Cushions. 4 x Socket Covers. 1 x Appliance latch. 6 x Cupboard and drawer catches.