Rugged and light, the 6.5 inch Carlisle Outfitter Oar Blade is made from tough, UV-resistant plastic and features a full-length, tempered aluminum spine for superior strength. Compatible with Carlisle 2-piece takedown Heavy Duty oar shafts and their 1-piece Extra Heavy Duty oar shafts this blade locks securely to the shaft with a simple yet strong push-button mechanism. The Outfitter Blade Assembly is molded of high-impact, glass-filled synthetic material and is fitted with a stronger insert than the standard blade to withstand more aggressive boating.