Reusable M-size warming item made from eco-friendly materials. - Model Name: WarmG - Size: M (Inner diameter approx. 10cm, Outer diameter approx. 14cm) - Features: Eco-friendly material, reusable - Uses: Cold protection, warming item WarmG Warm neck WarmG WarmG Instantly warms from the core! Warms directly from the neck! Just click to instantly warm up! Approximately 50°C and toasty warm! A convenient item to overcome the harsh cold! No batteries required and reusable. Reusable! Pocket Warmer Ring for Neck Warmth Cold Protection Cold Weather Gear ● Fishing ● Walking ● Travel ● Jogging ● Events ● Outdoor activities ● Outdoor work ● Gardening ● Work in cold places Material: TPU (surface), sodium acetate solution (inside) Used only once. Thank you for viewing.