Yamaha RKPCKR1 Real Rhythm Combo Kit Acousticon shell resonates like wood but is weather-resistant Extremely rigid and very difficult to damage renaissance drum head is spill resistant and does not stretch nor react to climate changes Easy affordable way to introduce children to making music Drum stick included Acousticon shell resonates like wood but is weather-resistant Extremely rigid and very difficult to damage Renaissance drum head is spill resistant and does not stretch nor react to climate changes Easy affordable way to introduce children to making music Drum stick included Acoustic on shell resonates like wood but is weather-resistant. Extremely rigid and very difficult to damage. Easy affordable way to introduce children to making music.