This Pair of Climbing Rock Holds by Swing-N-Slide make it easy for your child to climb like a pro! These rocks can be easily added to a wooden swing set climbing wall. Designed with small hands in mind, these rocks provide a safe and secure grip to assist children during climbs. Includes 2 plastic rock holds and hardware (lumber not included). Note: 4 sets required for 4 wall, 6 sets required for 5 wall, and 8 sets required for 7 wall.