1 Four Knob Block

Overview

The Four Knob Block is the largest and most feature-rich hold in the Sensory Block Series. Measuring 12 inches long, it provides an expansive standing surface designed to help climbers feel secure, stable, and confident as they move across the wall. Combined with four integrated knobs, this hold offers a variety of gripping and stepping options that encourage exploration and creative movement.

Designed for sensory rooms, adaptive climbing walls, therapy clinics, schools, and inclusive recreation spaces, the Four Knob Block helps climbers develop balance, coordination, body awareness, and motor planning skills. Its large, predictable shape is easy to recognize and use, making it an excellent choice for beginners and climbers who benefit from additional support and stability.

The generous size of this hold allows route setters to create comfortable resting positions, transitional movements, and confidence-building sequences. The four knobs add another layer of versatility, functioning as handholds, footholds, or target points for movement-based activities and therapy exercises.

Whether used as part of a sensory integration program, adaptive climbing course, or beginner-friendly climbing route, the Four Knob Block promotes success through movement. Its approachable design encourages climbers to challenge themselves while maintaining a strong sense of security on the wall.

Built for long-term durability, this hold mounts securely with a 3/8" bolt and a set screw to prevent spinning, ensuring reliable performance in even the most active climbing environments.

Features:

• Largest hold in the Sensory Block Series
• Four integrated knobs for multiple gripping and stepping options
• Oversized standing surface promotes stability and confidence
• Supports balance, coordination, and body awareness development
• Encourages motor planning and movement exploration
• Ideal for sensory rooms, therapy settings, schools, and adaptive climbing walls
• Easy-to-recognize shape for intuitive use
• Can be used as a handhold, foothold, or combination hold
• Anti-spin mounting system for added security
• Durable construction for high-use environments

Dimensions:

• Length: 12"
• Width: 3"
• Projection from wall: 3.5"

Mounting:

• Attaches with one 3/8" bolt and one screw to prevent spinning