The Ungrip is the best solution to your the problem of holding increasingly bigger and slimmer smartphones. It makes a large phone feel smaller. Rather than clashing with your phone’s style, this simple and effective solution accents both its look and your personality. Warning: Ungrip adheres to most flat, non-porous surfaces. It will not stick to rubber, soft-touch silicone, TPU, fabric and those with waterproof coating.