The coupon is used the Four adult products.You can choose one of the products below . The listing showed below :
https://www.amazon.com/Vibrator/dp/B01HRP9L6Y
https://www.amazon.com/Vibrator-Silicone/dp/B01HRP9OPM
https://www.amazon.com/female-Vibrating/dp/B01HRP9NSK
https://www.amazon.com/Vibrator/dp/B01HRPAN5W