Rocket builders, this Estes PSII 24MM Retainer Set is exactly what you need for securing motors in your Pro Series II rockets! You get two complete sets in each package, which is perfect if you're building multiple rockets or want to have spares on hand. These retainers are specifically designed to work with Pro Series II motors, providing that secure hold that keeps your engine properly mounted during launch and flight. If you've ever had issues with motors shifting or not staying put during powerful launches, these retainers solve that problem completely. They're made to Estes' quality standards, so you know they'll handle the forces of launch and recovery without failing. Installation is straightforward - they integrate right into your engine mount assembly. Having reliable retainers is one of those things you don't think about until you need them, but they're crucial for consistent performance and safety. Whether you're a seasoned rocketeer or getting into larger model rockets, these 24mm retainers are essential hardware that'll give you peace of mind knowing your motors are locked in tight for those awesome high-power launches!
Free 30-day returns 
Free 30-day returns
