Vertiball The mobile mounting system allows Vertiball to mount onto smooth surfaces (painted drywall, metal, wood, plastic and laminates). Simply lean on Vertiball with your body weight to easily relieve muscle knots and tension. You control how much pressure to apply. You can take it with you anywhere. Tense muscles are unpredictable, so you should be able to alleviate the pain anytime and anywhere. $50
