The drum kit has the following drum sizes (given in inches): bass drum: 14" x 11", snare drum: 10" x 5.5", tom: 8" x 6", tom: 10" x 5". Dimensions assembled (L x W x H): approx. 100 cm x 100 cm x 90 cm. This drum set is not a toy but a suitable instrument for children from 3-6 years.