Endo-batten seam construction with REAL seam shaping sets an exact profile in the sail. Webbing loops instead of a mast sleeve makes it easy to uphaul. The 2.0 and 2.5 main sail body is dacron. Two-ply Leech The 1.0 and 1.5 main sail body is monofilm. Reinforced grommets Spin-on universal with Euro-pin, tendon joint and rope leash. Base cup with Euro-pin quick release. Small grip, adjustable boom, fits 1.0 to 2.5. Uphaul included adjustable, 2 piece aluminum mast Two Quivers To Choose From: Includes: - 1.0 and 1.5 square meter sails - adjustable two piece mast - adjustable boom with small grip - Euro pin base - Spin-On universal - uphauL - perfect for 5 to 8 year-olds Includes: - 2.0 and 2.5 square meter sails - adjustable two piece mast - adjustable boom with small grip - Euro pin base - Spin-On universal - uphaul - perfect for 9 to 11 year-olds www.ezzy.com