Loft Angle: 15 Flex: R (M-37/R-1) Dexterity: Right-handed Club: 3W (3-wood) RBZ BLACK 2018 The shaft is labeled R, but since it's a US model, it's likely equivalent to an SR or S flex in the Japanese market. Selling due to an upgrade. I'm also selling other golf clubs and shafts, so please take a look. I'll discount the shipping cost if you purchase multiple items, so please comment if you're interested.