The grooved rocket is pure fun right from the beginning. The rockethead is like pointed for easy insertion. Once you got this the fun starts. The grooves will make you crazy. In and out and move especially when you turn the rocket around. Anal or vaginal a little sensation. You will never miss it. The overall length is about 36 centimeter ( 14.2 inch ) the biggest diameter on the top of the rocket is about 6 centimeter ( 2.4 inch ) and the smallest diameter on the grooved shaft is 3.6 centimeter ( 1.4 inch ). The rocket weight is about 600 grams ( 21 oz ). Available for you in standard and premium silicone in all colors and grades of hardness. Ultrasoft version not recommendet cause of the thin shaft. Now have fun with your grooved rocket and enjoy each moment with it.