Directions for use:

now with Sveltus there is a product for the same purpose but with greater resistance

The Pjur med water-based personal lubricant with no additives

parabens or glycerin

Human Flexible Skeleton with Ligaments- 180cm Knee Directions for use:The life size articulated adult plastic skeleton is ideal for teaching the basics of human anatomy. It has a flexible spine that allows it to tilt forward, backward and to the sides. 1 arm and 1 leg are movable for study. Features nerve branches, vertebral artery and herniated lumbar disc. The skull includes movable jaw, cut calvarium, suture lines and 3 removable lower teeth. The right side of the skeleton shows shoulder, elbow, hand, hip, knee, foot