The world famous Aneros the Male G-Spot Stimulator. The Aneros Helix is aggressively shaped and angled. This model provides immediate pressure and tension on the prostate and surrounding area. Destined to become the new standard because it requires less patience and practice to realize benefits. In terms of dimensions, the Helix is larger at the tip and more angled to provide a more vigorous massage. However, the mid-ridge is slightly smaller on the Helix. All reports about the Helix have been wonderful! Specifications: 1 1/16 inch diameter at tip, circumference 3.34 inches, 15/16 inch diameter at mid-ridge, circumference 2.94 inches. 1 3/4 inches from main body to perineum pressure point. Aneros Helix Prostate Massager features: larger bulbous head with flat, wide head for more contact with prostate. Strong angled stem for greater pivoting ability. Dime perineum tab. For adventurous beginners and advanced users. The Aneros can also be used to great effect during traditional sexual encounters. During oral sex and traditional intercourse, when the man uses the Aneros he will be harder, last longer, have better control. His prostate will empty more fully during ejaculation, which means a more intense and satisfying orgasm. This increased sexual performance is a great secondary benefit for the partner as well. The Aneros is a great way to explore and expand your intimacy with your partner. ID Glide is a high quality, water-based lubricant great to use with your Aneros prostate massager. Always clean before and after use. Made in the USA from FDA approved materials.