NS Novelties Firefly Pleasure Plug Small. Illuminate all your under-the-covers fun! Soft and comfortable to use, these tapered plugs are body safe and easy to receive. Available in three bright colors, these sexy glowing plugs will turn you on when the lights are off. Made of odorless Thermoplastic Elastomers TPE. Suitable for all lubricants. 4 inches by 1.7 inches.