~ tracking down this book ~
Penis inserts are generally regarded as sexual enhancements as they are intended to increase sexual pleasure for women by creating more friction during intercourse. The insertion of objects in the penis is a common practice in Southeast Asia. These objects take the form of beads, bells and pins. Five different forms of penis inserts are used across the region: (1) those inserted under the skin of the penis including solid balls, (2) solid non-spherical objects, (3) bells, (4) pins or bars with elaborations on the ends inserted crosswise through the penis, and (5) pins or bars through the penis holding a ring or rowel-shaped object around the penis.