Let your heart shine with these light-up nipple clamps! These black, tweezer nipple clamps are perfect for beginners and advanced users. Combine them with the light-up LED hearts for an awesome light-show for your lover!The tweezers are fully adjustable; simply use the ring to slide upwards towards the tips for more pressure and away from the tips for less. The tips are coated in vinyl to protect the skin from abrasion and to improve comfort during wear. The LED discs are battery operated by 4 CR1220 batteries (included) and cycle through 3 different light patterns!Measurements: Overall length: 4.6 inches, Clamps open up to: 0.5 inches wideMaterials: Silicone, ABS Plastic, Metal, VinylColor: Red Silicone Heart, LED Lights: Green, Blue, RedNote: 4 CR1220 batteries (included) Key Features: Adjustable Tweezer Clamps: These black tweezer clamps look great and are fully adjustable; simply slide the ring upwards toward the tips to increase pressure. Light Up Patterns!: Choose between 3 different light patterns from these LED circles! The lights are operated by 4 CR1220 batteries (included). Premium Silicone and Vinyl Coated Tips: The red hearts encasing the lights are premium, phthalate-free silicone. The tips of the tweezers are covered in vinyl to protect the skin from abrasion and increase comfort during wear.