Zitrades Ultrasonic Pest Repeller - Set of 4 Electronic Plug Pest Repellent for Insects - Mice, Ants, Rats, Bugs, Fleas, Cockroaches, Mosquitoes and Spiders (Pest Repeller Ultrasonic) Color: gold ,silver Finger roling ring. Helps with arthritis, body pain, stress relief, addiciton recovery relief. Rings are used for self treatment and not to be worn continuously The Finger massage rings are made of allergy-free precious steel