Gyroballs long-stretch ball spanner with rubbery supports that stretch you more, with max squeezein the middle. <br><br> • Strong <br> • Stretchy blend <br> • Material: TPR + soft silicone <br> • Phthalate free <br> • No scent <br> • Hourglass shape inner grip <br><br> MEASUREMENTS: <br> • Width: 2" (5.08 cm) <br> • Outer circumference: 6.75" (17 cm) <br> • Inner circumference: 3" (7.62 cm)