Keep your loved one SAFE and SAVE when you purchase 4 Down Syndrome Safety Medical Alert Decals. Each decal is fade resistant, weather resistant, waterproof, and easy to apply. Made from top quality 3M materials. Works perfectly on vehicle windows, doors or windows of home, or anywhere safety is a priority! Apply to non-porous surface. Be sure to apply to a perfectly clean surface. Peel backing and stick. Measures approx. 3.75 x 4.5 inches.