Come and see our amazing products. The material is Eco-friendly and non-toxic Aluminum alloy and its size is 0.59 " x 2.87 ".Suitable to be used for walking, picnic ,camping etc. to give light in the evening.It is very convenient to connect to the key chain or put into backpack or the pocket. Keep a back-up in the medical and emergency kit is also very convenient and useful.Note:Button butteries are included.Price over 10000 pcs is via sea shipment.Price subjects to change without notice,please verify with supplier. Pls confirm with us about the packing info, stock color and exact production time before placing your order.