[Home](./index.md) > [server](./server.md) > [ParticleEmitterOptions](./server.particleemitteroptions.md) > [sizeEndVariance](./server.particleemitteroptions.sizeendvariance.md) ## ParticleEmitterOptions.sizeEndVariance property The size variance at the end of an emitted particle's lifetime. **Signature:** ```typescript sizeEndVariance?: number; ```