Features:Easy to install.100% Brand New.100% Original Walkera brand.High quality and durable in use.Features stable and powerful flying experience.Light weight and protable to carry.Made of good and new technology material.Specifications::Brand name: WalkeraBrand model: Runner 250-Z-01Item name: CW/CCW propellerSuit for: Walkera Runner 250 QuadcopterItem dimension: 115 * 25 * 23mmItem weight: 15gPackage information:Package size: 16.5 * 10 * 1.2cm / 6.5 * 4.1 * 0.5inPackage weight: 30g / 1.2ozPoly bag package Package included:2 Pairs Propeller for WALKERA Runner 250 (4pcs in total )