Enhance Travel Pump System is a premium system with a patent pending quick release pull tab valve maintains suction even when the hose is removed. Sturdy threaded 2 piece cylinder has a contoured grip, and disassembles and nests for compact storage and travel. Universal measurements on cylinder track results. Newly designed hand pump with an easy finger grip handle. Tapered Silicone donut for secure suction. Includes the Silicone Commander erection enhancer and handy travel bag. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials ABS plastic pump handle, Styrene Acrylonitrile SAN cylinder, PVC hose, Silicone donut, Commander, nylon travel bag. Pump measures 9.5 inches long by 2.5 inches wide. Cylinder assembled measures 9.5 inches long by 2.5 inches wide. Nested Cylinder assembled measures 6 inches long by 2.5 inches wide. Bulk weight 11.9 ounces. Always clean before and after use. Pump session should last no more than 15 minutes, wait 24 hours between each session and no more than three to five sessions a week. Penis pumps are a method of achieving maximum possible penis size for a temporary period of time. Penis pump results are temporary. There are no guaranteed results from penis pump usage.