Reaction Ball v2.0

Reaction Ball v2.0 — Printed in Siraya Tech Roamr 85A Train your reflexes. Outsmart the bounce. This 3D printed reaction ball is a multi-lobed training tool designed to produce unpredictable, erratic bounces. This forces athletes to track, react, and respond in real time. Whether you're a hockey player, martial artist, tennis player, or just want a serious coordination challenge, this ball will keep you on your toes. What Makes This Design Different This model is sliced with zero perimeter walls — a deliberate design choice that replaces rigid shell layers with pure infill structure. Combined with Siraya Tech's Roamr 85A foaming TPU, the result is a ball with outstanding energy return and a natural, rubber-like feel on impact. Supports have been tuned for clean, easy removal — no digging required. The no-wall approach is critical. Adding walls will make the ball too stiff and kill the bounce response. Trust the infill. Material: Siraya Tech Roamr 85A (Recommended) - Any High Rebound Fi