What size snake can I catch?

It's going to depend on the diameter of the snake. The maximum head width must be smaller than 3cm to fit into the trap. It is not critical that the whole snake fit inside the trap as snakes can not go backwards, only forward. Some snakes will completely go inside the trap if they will fit, but we have reports of snakes up to 3 m that did not go completely into the trap but were still captured.