Electronic Insect Racket Zapper Kills Flying Insects on Contact. Triple mesh grid : protective grid for added safety. Uses 2 AA batteries, not included. Press and hold safety switch. " ON" light. The flying insect is electrocuted instantly or stunned on contact. Useful any where there are flying insects. Note: The racket head net becomes hot once activated. Keep away from skin and children. This electronic fly swatter is not a toy. Unlike rackets with "strings", our fly swatter kills every time you touch a flying insect. Dimensions: 19" L x 6.25" W x 1.25" H . Lightweight.