Well Made: Clear suction cup hooks are well made of high-strength PET plastic material and high-tech locking technology; robust construction, sturdy and durable; transparent look is quite minimalistic and simplistic, blends in seamlessly with any decor; won't turn yellow or reduce adhesion over time Heavy Duty: Double vacuum suction cups creates stronger suction power; strong seal can holds up to 6.6 lbs; ensures it can work in different temperature indoor or outdoor, lock into place and stay put well; hold tightly without falling or sliding; the fine hooks holds both small and big items well; simple design yet meets versatile uses