One-time Foreplay Finger Vibrator by You2Toys. The ultimate foreplay sex toy must-to-have accessory. Yes, this is a couples sex toy.
Attach it to the finger. Activate the vibration with the On/Off button on the side and Game on. This is One-Time Tickling, knobbed, blue finger vibrator with a flexible loop. On/Off button on the size. Vibration lasts for 45 minutes. Add some water-based lubricant and tickle the clitoris, nipples, penis and testicles. 
Yes, its ideal to use on all forplay games. 
Product features & characteristics

• Complete length- 4.4 cm,
• Inner diameter Ø approx. 2 cm.
• Material: Super soft TPR, ABS, phthalate-free according to EU Regulation REACH.
• Includes a non-removable battery.
• Battery life cycle is 45 minutes