The bass drum of Brazilian music is the Surdo. Lightweight and constructed wood shell, these surdos are perfect for traditional Samba. They are tunable and come with 2-ply heads with the outer ply made of synthetic leather to have more low end. Included is a shoulder strap. Legs are optional. Available in 3 sizes: 22″,20″,18″. Surdo Mallet extra. Cases also available.