Metal blow-out guard to protect babies from burns. - Product Name: Blow-out Guard - Purpose: Protect babies from burns - Size: Compatible with approximately 35cm to 55cm - Material: Metal - Condition: Used This type attaches with Velcro. Thank you for viewing. Attach the Velcro for fixing to the fan heater, and then attach the guard. You will need to apply double-sided tape to the Velcro. It is fully usable once you apply the double-sided tape. Due to the velour fabric, it has some dust that looks like lint. Thank you.