soalr bug 1,are very polular as the gifts 2,attractive price 3,no battery required solar bugCertificate:CE,RoHsSize:42*18*20mm Weight:N/W 4.8g G/W 17.0 gDescription:a.solar enegy,environmently friendly.b. powerd from sunlight, working directly, no contral.c.It's a fun and educational way to lean solar power.d. Amazing gifts to make Chirldren happy.e. don't fit for kids bellow 3 years old.