Sex and a smile with firefly’s glow in thedark couples kit. Includes a 5 inch smoothes dong and a slim tapered plug, both with a strong suction cup and a 3 speed super elastic ring with pleasure knobs. All items are made of odorless, body safe Thermoplastic Elastomers TPE. Suitable for all lubricants. Vibrating ring requires 3 AG13/LR44 batteries included.