CorLok® Balance Trainer Insert

The BOSU® CorLok® Balance Trainer Insert is a precision‑designed plug that fits securely into the CorLok® base whenever you’re not using compatible accessories. Made to keep your Balance Trainer performing at its best, this insert maintains a smooth, stable surface and protects the internal locking channel from dust, debris and wear. Flip your Balance Trainer dome‑side‑down and the fun really starts. This insert features a built‑in quadrant level, turning your training into a playful challenge as you test your stability, symmetry and control. Whether you’re working on balance drills, core activation or dynamic movement patterns, the quadrant level adds a new layer of feedback and engagement. Proudly made in the USA and 3D‑printed for consistent quality and durability, the CorLok® Insert is a simple but essential upgrade for your BOSU® CorLok® Balance Trainer. Quadrant Level — Adds a playful stability challenge when training dome‑side‑down 3D‑Printed Design — Ensures consistent precision, durability, and a perfect fit Protective Insert — Shields the internal locking channel from dust and debris Made in the USA