*Excellent* Bridgestone J36 4-PW Muscle Back (MB) Blades w/ Project X Flighted 6.0 Shafts. Standard L/L Heads forged at Japan’s legendary Endo Foundry. Near Mint condition except for very small nick on sole of 6-iron (see photo). Features: Premium forged 1020 mild carbon steel. High center of gravity produces penetrating ball flight. Thin top line and sole. Compact head size and progressive offset increases shot shaping capabilities. Tapered sole design for versatility in shot making. Trailing edge relief for better performance from a variety of lies.