SPORTLAND Competition Javelins are one of the best brands in the world. Improved & thin tapered tail for excellence balance. Using military-grade hardened aluminium alloy, these Javelins are IAAF approved in 4 different weights. - Specifications:IAAF APPROVED JAVELINSMilitary-grade hardened aluminium alloyrevolutionary hardening manufacturing process for the aluminium One of the best aluminium javelins in the world - Improved and thin tapered tail for excellent balance, feel and flight - Cord grip - Available Weights:400GM500GM IAAF APPROVED, Range: 50M600GM IAAF APPROVED, Range: 60M700GM IAAF APPROVED, Range: 70M800GM IAAF APPROVED, Range: 80M