SELKIRK LABS Project Boomstik® - ElongatedSELKIRK LABS Project Boomstik Elongated The Tec Boom Core for Solid Feel, Consistent Performance, and Lasting Durability. The new Boom Core Pure Foam surrounded by an EVA Power Ring and fused together is our most powerful core system ever. Alongside a massive sweet spot, this core packs a powerful punch with unrivaled durability. No core crush, no break in period. Explosive power without compromise. MOI Tuning System for Maximum Sweet Spot and