Cardboard Traps is a Legends of Idleon item: quest reward, sold in shops.

Cardboard Traps | Idleon Toolbox

Cardboard_Traps

The very tippy top of the shell, with some of the underneath part attached as well.

''Theres a snake in me boots! Oh wait no, my boots are the snake!'' - Someone who wears snakeskin boots

Twelve hours, that's a long time! Hold down to instantly get 12 Hour of AFK Gains.

Collect material from Snelbie Snails, and Snakes. Also, buy a trap from the Town Shop.