Hero My Doubler is perfectly curved to be used for double penetration solo and flexible enough to be used with a partner. andnbsp;One end thick and girthy, the other more slim and slender giving options on how the user would like to play! andnbsp;Please clean with toy cleaner before and after each use and use with water-based lubricants. Harness compatibleStrong suction-cup baseFlexible and feels realWaterproofPhthalates freeMaterial: PVCSize: Overall Length/Height - 8.5Dong 1 = 7 Insertable, Width - 1.75, Circumference - 5.5Dong 2 = 7 Insertable, Width - 1.25, Circumference -4.5