For Samsung Galaxy S4 i9500 Zebra PC Silicone Hybrid Cover Case Black/Neon Green Accessory Soft silicone skin on the inside and hard rubberized plastic on the outside. Edges are reinforced for more protection. Rubberized finish provides better grip. 2 Tone coloring provides a more stylish look! Pre-cut openings allows full access to all of the Samsung Galaxy S4's functions.