This will be an observational, prospective, non-randomized, pilot study to gain initial device experience on a novel space-occupying device in persons who are overweight or obese. No formal hypothesis testing will be conducted.

Inclusion Criteria:

1. Age between 21-64 years
2. BMI 27-40 Kg/m2
3. No history of weight reduction of more than 5% of total body weight in the past 6 months

Exclusion Criteria:

1. Have unstable angina, myocardial infarction within the past year, or heart disease classified within the New York Heart Association's Class III or IV functional capacity;
2. Be taking chronic aspirin or other non steroidal anti-inflammatory agents, or other medications known to be gastric irritants, and unwillingness to discontinue the use of these concomitant medications, antiarrythmics, anti-anginal medications, anticoagulants or medications for congestive heart failure;
3. Be taking blood pressure medications, unless their blood pressure is controlled and they have been at stable dose for at least 3 months;
4. Have type 1 diabetes or type 2 diabetes requiring oral medications or insulin;
5. History or symptoms of thyroid disease which is not controlled by medication;
6. Have severe renal, hepatic, pulmonary disease or cancer;
7. Past history of gastrointestinal surgery (excluding uncomplicated appendectomy);
8. Have a history of adhesive peritonitis;
9. History or symptoms of esophageal and/or gastric varices;
10. Have history or congenital or acquired GI anomalies (e.g. atresias, stricture, and /or diverticula);
11. History or symptoms of inflammatory bowel disease, such as Chron's disease;
12. History of/ signs and /or symptoms of duodenal or gastric ulcer;
13. Have gastroparesis;
14. Pregnant or breastfeeding or intention of becoming pregnant during the study (if female of childbearing potential);
15. Currently using pharmaceutical agents for weight loss;

Patients will be selected from a community sample that satisfy the inclusion/exclusion criteria.