Feature: 1. Keep your bike computer(not included) from scratches, and prevent it from slipping off the bicycle easily. 2. Made of impact resistant silicone material,durable to use and easy to clean. 3. Bright color will not fade easily. 4. Does not obscure the screen,and easily do some buton operation. 5. Convenient to remove and install. 6. Only replacement for IGPSPORT IGS320. Specification: Features: Protect your bike computer(not included) from scratches, and prevent it from slipping off the bicycle easily. Made of impact resistant silicone material,durable to use and easy to clean. Bright color will not fade easily. Does not obscure the screen,and easily do some buton operation. Convenient to remove and install. Only replacement for IGPSPORT IGS320. Specification: Color: Yellow / Black / Purple (optional) Material: Silicone Size: 7.5*5.2*1.6cm / 3.0*2.0*0.6in Weight: approx. 9.55g / 0.3oz Package size: 11.2*7.2*2.3cm / 4.4*2.8*0.9in Package weight: approx. 19g / 0.7oz Package List: 1* Silicone Cover Package List: 1* Silicone Cover