Features: 1. The hearing aid safety guard behind the ear is housed in a portable plastic storage box with a key chain. 2. Both ends of the fixator (one for each ear) have a rubber ring attached around the auxiliary device. 3. To prevent loss of the plastic crocodile clip attached to the lanyard, simply open and lock the nape of your shirt/jacket. 4. In the case of hearing aid falling off, the hearing aid is fixed on the rope to prevent loss. 5. Very easy to use. Just attach the two sides to the hearing aid. The rope is long enough for adults and children. Specifications: Material: Nylon + Silicone Color: Grey / Brown / Green / Dark Blue / Light Blue (Optioanl) Package Size: 8 * 6 * 3cm / 3.15 * 2.36 * 1.18in Package Weight: 50g / 1.76oz Package List: 1 Pair * Large Silicone Ring 1 Pair * Small Silicone Ring 1 * Anti-Lost Rope