# Caltrops (Bag of 20) > [!info] Item Details > | | | > |---|---| > | **Category** | Adventuring Gear | > | **Cost** | 1 gp (per bag of 20) | > | **Weight** | 2 lb. | --- ## Description Caltrops are sharp metal spikes designed to slow or injure anyone walking through an area. A caltrop has four spikes arranged so that one always points upward when the device is resting on a surface. --- ## Properties - As an action, you can spread a bag of caltrops to cover a **5-foot-square** area. - Any creature that enters the area must succeed on a **DC 15 Dexterity saving throw** or stop moving and take **1 piercing damage**. - Until the creature regains at least 1 hit point, its walking speed is reduced by 10 feet. - A creature moving through the area at half speed doesn't need to make the saving throw.