Experience subtle, compelling sensations with our most advanced model, the Aneros Eupho. The delicately shaped Eupho has a small head and thinner stem which means that it will move more than the other Aneros models. Instead of putting pressure on the entire prostate, the Eupho massages different parts depending on the man's anal sphincter contractions. A man experienced with our other models and/or with stronger PC sphincter muscle will be able to exact precise control over the Eupho, causing it to ''dance'' all around the prostate for a variety of subtle to sublime sensations. The Eupho offers an enticing, appealing shape that tingles and coaxes you slowly to new sensations and uncharted territory. The gentle curves and ergonomic design allow for gradual build-up of physical sensation to lead you to the next level. Due to its advanced design, the Eupho is best reserved for experienced users who have developed their technique. PRODUCT SPECS: Tip Width: 1.9 cm (0.75 inches) Mid-Ridge Width: 2.3 cm (0.9 inches) Stem to Perineum Distance: 3.8 cm (1.5 inches) Insertable Length: 10.16 cm (4 inches)