This 9-in-1 Pikler triangle set turns a single piece of furniture into a full Montessori activity corner. Kids can rearrange the pieces into a climbing triangle, arch, balance beam, play tunnel, rocking arch, bridge, seesaw, car track, or climbing ramp, giving them a new way to play every day. Tested to hold up to 150 pounds, it's built from solid wood with an anti-tip structure, ergonomic curves, smooth edges, detachable feet, and secure ropes so climbing stays stable and gentle on small hands. The climbing triangle measures 23.5 by 29.3 inches, the arch spans 32.2 by 20.2 by 15 inches, and the full set stretches 76.8 inches long when set up, weighing 27.34 pounds overall. The modular pieces assemble in minutes, and the detachable cotton cushion is machine washable for easy cleanup. Two wooden toy cars are included, adding hands-on play and fine motor practice for storytelling and role play. Finished in orange, it folds down for storage and grows with toddlers as their climbing skills develop.