The Wonder by Evolved has a length of 8 ¼” and insertable length of 6 ¾”, with a circumference of 4 ¼”. It's not too large or small. The Wonder is made of TPR, which is a rubber polymer blend. It's Latex free / Phthalates free / Hypo-allergenic and less porous than cyberskin, and much safer then Jelly.