To apply. 1. Clean surface with isopropyl rubbing alcohol, wipe gently, let dry. Do not use household cleaners. Separate strips. 2. Blue side. Remove blue liner. Press adhesive to hook. Make sure tab is accessible for future removal. 3. Black side. Remove black liner. 4. 30 Seconds. Press hook firmly for 30 seconds. Wait 1 hour before use. To remove: 1. Never pull strip towards you. 2. Straight down. Hold hook gently to prevent hook from snapping fingers. Do not press hook against wall. 3. 12" 30cm. Stretch straight down along wall at least 12 inches (30 cm) until strip releases from wall. Important: failure to follow instructions carefully may cause damage! Save instructions for damage-free removal or visit command.com. Note: apply to surfaces above 50 degrees F (10 degrees C). Adhesive could lose adhesion above 105 degrees F (40 degrees C).