Preston is a stretchy cage rather than a solid sleeve, textured across its surface so that both people notice it. A ball ring at the base holds it where it was put instead of letting it ride up. Vibration comes from small cells rather than from a charger.
Specifications
- Material: TPR
- Power: 3 x AG9 batteries
TPR takes water-based lubricant and nothing else; oil-based and silicone-based formulas break it down.
Give it a wash with gentle soap and warm water, and make sure it is dry before storing.
