Thumb Lock detachable adhesive strap fasteners - Safety product of the year! Ideal for all types of appliances, televisions and computer equipment. No holes in equipment or furniture, and detachable with a clip of your thumb. They can be easily removed and reused and without harm to desk or equipment surface. Don't be fooled by immitations; These fasteners use '3M' adhesives and were selected by Caltech, FEMA, the National Weather Service and the City of Los Angeles to secure critical computer equipment. Available in different sizes, strengths and colors. Strengths ratings are based on (1) pair installed on opposite corners of equipment. Four corner fastening may be substituted for heavier equipment and will double the listed strength ratings. Independent engineering reports available upon request.