Case Logic 150 Single-sided CD ProSleeves - White Convenient thumb cut for safe and easy handling of CD in and out of sleeve Slit on backside to hold accompanying liner notes or cd booklets Patented polypropylene ProSleevereg; keeps dirt away to prevent scratching of delicate CD surface Great for organizing, storing and transporting CDs Compatible with: RBMB-72, RBMB-150; RBSW-30; HCDC-1; HCB-1