The Amzer Blue Jelly Case is made out of 100% premium silicone and is a great, light-weight option for protecting your HTC Thunderbolt. The durable silicone absorbs any shock your HTC Thunderbolt may receive from any accidental drops or bumps, keeping it just like new. The smooth silicone gives you a sure and lasting grip on your HTC Thunderbolt and minimizes sliding on flat surfaces. You have full access to your HTC Thunderbolt without removing it from the case. The Jelly Case is truly like a second skin and a must have accessory!