Sticker material: EVA Foam (Ethylene vinyl acetate) Clock material: Metal Hour hand: 31.5 cm /12.4" Minute hand: 39 cm / 15.3"Clock machine: 12 cm/ 4.9"the minimum achieving is: 63 cm x 63 cm / 24.8" x 24.8".The clock final decoration size is decided by how you want todecorate you walls.