This buckler is set with numerous polished green stones: one at its center, and the rest in concentric rings around it. The center stone is the smallest, with larger stones in each ring toward the buckler’s edge.

By speaking the command word, you can transform this +1 buckler into a 5-foot-by-5-foot vertical wall of force. The wall persists for 1 minute or until you speak a second command word to return the buckler to its normal condition.
The wall of force ability functions three times per day.

Prerequisites: Craft Magic Arms and Armor, wall of force.
Cost to Create: 2,000 gp (plus 165 gp for base item), 160 XP, 4 days.