Features: 12inch Practice Drum Pad uses a silicone striking surface to reduce noise. Four areas have different elasticity to simulate feel of drumsLow Noise: 12" Heavy Duty Practice Drum Pad is designed to be low noise, non slip and wear resistantMaterial: 12" Silent Drum Practice Training Pad is made of silicone material to ensure long term useSize: Silent Drum Pad is 31 cm in diameter, compact enough for easy storage and transportation, but large enough for comfortable playingApplication: drum learning tool is suitable for beginners learning the of drumming or experienced players looking for a portable practice solution Size Chart: dumb drum diameter 31cm/12.20inch Package Includes: 1 Drum Pad Note: Please allow slightly errors 1-2cm differences due to manual measurement.