Tubular E-glass blank with solid tip offers exceptional strength without the weight. The "BT" model offers a solid glass blank for added strength. Premium graphite reel seats with corrosion resistant stainless steel hoods. "ST" models have aluminum reels seats and a slick butt. Durable, lightweight EVA grips for comfort. High quality aluminum oxide, stainless steel, carbology, or AFTCO® roller guides. Models have aluminum or graphite gimbals-see chart.