The Wave is good for vagina, clitoral, and nipple stimulation on women. For men it is good for stimulation of the shaft and the head of the penis, and for rubbing against the testicles. It is not good for insertion into the anus as there is no flared base to stop the toy from being inserted too far.

The cosmic wave is made of TRP, and it is hypoallergenic, latex free, and is phthalates free. I am glad that it was latex free or I would have had a bit of trouble with rash and swelling.
The texture of the wave is cool and very different from any of the vibrators I have used in the past. The multiple layers of ribbing and the angle size difference makes it nice to work the “G” spot. The noticeable pleasurable difference in the changing of the size throughout this vibrator makes for enjoyable playing solo or with a partner.

The Cosmic wave has an average length at 6 ½” with an insertable length of 5 ½” giving you about an inch to hold on to. The circumference of it is 4 ¾” with a diameter of 1 ½”. You may need a little lube for getting started. The size and shape of the circular rings running down it make it a little slow going at first, but with the lube it helps out a lot.
It is very flexible which is nice for moving it from the clitoris in to the virginal area. The rings were very enjoyable on the g-spot going in and out because they are flexible and move with your body. The size and shape for me was good.
A beginner and advanced user would like using the wave.

The cosmic wave is a vibrating toy made by Doc Johnson. The special features of the Cosmic Waves Stellar Vibe are the contoured shape with the multiple layers of coiled ribbing that go thoughout the body of the toy. The multi-speed is nice but having to go through all the speeds to get to the one you like, and then having to run through them to turn it off is the best.
The texture is rubbery. It sealed to be waterproof and yes, I tested it in the shower; it worked very well.
The cosmic wave has a dial-base you start at the lowest vibe and go up to the highest then back down to shut off.
Two AAA batteries power it. I take them out the save the life of the toy and batteries.

As with all products made from TPR, the wave is porous. It would be good if you were going to share this toy with others to use a condom. This is recommended for the safety of all playing.
Wash with soap and water before and after use, you can use a 10% bleach to 90% water solution to clean. Because of the ribbing, wet wipes are not a good way to clean the wave. For this reason, a condom would be good to used when playing with others, and also for easy clean up at play parties.