The Nagi is best suited for vaginal penetration. It isn't safe for anal insertion and due to the large size and flexible tip, it isn't ideal for clitoral or nipple stimulation. I would recommend the Nagi to someone looking for strong vibrations and a bit of girth. If you prefer texture or a g-spot curve, check out the other toys in the SinFive line. Nagi means "to swim" in Esperanto, and fittingly the Nagi is totally waterproof, so you can take it in the shower or tub with no worries.

The shaft of the Nagi is made from silicone, and the battery cap and the white strip above it are plastic. It is non-porous and hypoallergenic, with no taste or smell. SinFive toys have an added antimicrobial effect, which makes the Nagi extra safe. The antimicrobial additive is mixed with the silicone during production. It is not a coating and won't come off of the toy. The material damages the metabolism of microorganisms, which prevents them from growing on the surface of the toy. According to the manufacturer, the additive is not harmful to humans and will not disrupt the balance of your natural vaginal flora.

The silicone is soft and smooth, and has a matte surface with just a little drag. It is fairly firm and doesn't have much "squish" to it, other than at the very tip. The Nagi is quite flexible, especially at the tip, and can be bent to a 45 degree angle. The only texture on the toy is a slightly raised octopus design near the base, but I wasn't able to insert the toy far enough to feel it. If your clit is located fairly close to your vaginal opening, you might be able to bend the toy so that the octopus hits your clit while the shaft is inserted. I tried to use it this way, but he couldn't quite reach.

The Nagi is 8 inches long, but since the controls are located 5 3/4 inches down the shaft, you won't want to insert it any farther than that. The tip is tapered for easier insertion. It starts at 3 1/2 inches in cirumference, and gradually increases to 5 inches at the largest point. I think this toy would be a good size for the average user. It has enough girth to be satisfying, but shouldn't be painful or overwhelming.

The design is simple and modern, but the octopus adds a bit of whimsy. It isn't very discreet, and looks like what it is: a high quality sex toy.

The battery compartment is easy to screw on and off. It takes two AA batteries, and is marked to make sure you insert them in the right direction.

The Nagi is controlled by two buttons, marked with + and - symbols. I like that the symbols are oriented to be in the correct direction while the toy is inserted. The buttons are located beneath the silicone, and take a fairly firm press to activate, but are not difficult to use.

There are 6 speeds of steady vibrations. Holding the + button turns on the lowest level of vibration. It is quite rumbly, and I would give it 2 bees and 3 vrooms. The vibrations increase in intensity, volume, and frequency as you continue pressing the + button, until you reach the highest level of steady vibrations. It is a little loud, but powerful enough to justify the noise, and still pretty rumbly. After that you reach the 3 patterns. The first slowly alternates between low and high vibrations. The second does the same thing, but faster. The third pattern is random. Pressing the - buttons cycles back through the patterns and levels, and holding it down for 1 second at any time will turn the toy off.

The motor is located about halfway down the insertable portion of toy, and the vibrations travel well throughout the shaft.

Although the toy is antimicrobial, it is still important to clean it after every use. Wash with warm water and soap, and dry with a lint-free cloth. The fact that it's waterproof helps make the Nagi very easy to clean.

The packaging is very modern looking and attractive. It could be used for storage and would make a great gift. There is an outer sleeve with a picture of your toy and a tattoo-like design of a heart with a sword through it, and the word Luxuria. After sliding it off, you will find a plain white box with a flap that can be opened to reveal a window with the Nagi inside. Inside the flap the word Luxuria is repeated, and translated into several languages, with the English given as "salaciousness." Luxuria is the Latin name for the sin of lust, which is the fifth of the seven deadly sins, and the meaning behind the brand name SinFive. The toy is in a molded plastic tray, along with a set of batteries. It comes with a full instruction manual, a pamphlet about the antibacterial material, and one showing all the other toys in their line. There is a card that you can mail in to get a 5 year warranty on your toy. You can also register for the warranty on the SinFive website.