EXHIBIT 4.2 SUMMARY OF LEASE AGREEMENT Following are the principal terms of our lease agreement for our offices, which was signed on June 26, 2003: o ADDRESS: 82 Menachem Begin Road, Tel Aviv, Israel. o DESCRIPTION OF OFFICES: Entire 4th floor of the building, encompassing approximately 12,000 square feet. o ADDITIONS: Parking spaces and storage space in building's basement. o TERM OF LEASE: Three years, commencing on September 1, 2003, with an option for three more years, as described below . o RENTAL PAYMENTS: Approximately $11,000 per month for the offices and approximately an additional $5,000 for parking and storage space. These amounts are linked to the Consumer's Price Index. o OPTION: An option to extend the lease for an additional three years, until August 31, 2009, was exercised. Beginning September 1, 2006, the rental charges will be increased by 5%, plus any increases in the Consumer's Price Index. o ADDITIONAL COSTS: Maintenance, municipal property tax and other related expenses.