New technology: Solar powered LCD No batteries Flash all the time in rooms or outdoor lights Waterproof Create your own image design Good for your premiums, promotional gifts and collection Specifications Name: 62mm Solar Power KeyChain product size: 62X26X7mm product weight:0.024-0.026kg Packing:25.2*25.5*33cm Delivery date:15days park Style:opp Quantity:50pcs/box 400pcs/ctn NW/GW:9.6-10.4kg/10.1-10.8kg