On Defence Flea + Tick Spot-on Solution for Small Dogs 67 mg/60.3 mg - Vm 39787/4029
On Defence Flea + Tick Spot-on Solution for Medium Dogs 134 mg/120.6 mg - Vm 39787/4025
On Defence Flea + Tick Spot-on Solution for Large Dogs 268 mg/241.2 mg - Vm 39787/4026
On Defence Flea + Tick Spot-on Solution for Extra Large Dogs 402 mg/361.8 mg - Vm 39787/4027