Advanced Rocketry Kits and Components Loc Precision has rocket kits that are 1.6" to 7.5" in diameter. All Items Here are all the products in this category: • AURA • WEASEL • Lil' NUKE • LEGACY • ONYX • GRADUATOR • VIPER III • VIPER IV • STARBURST • IQSY TOMAHAWK • COOL SPOOL