This clock was designed to depict a big explosion - like the biggest ever, the big bang. - Material: plywood (birch) - 6mm - Manufacturing process: the central disk and the 4 different length spikes are laser cut from a 6mm birch plywood board, after polishing the spikes are painted gold (paint is glistening in proper lighting conditions), then distributed evenly and clamped manually on the disk. The central disk is white. Owing to the manual distribution process none of these clocks are identical. -The movement: is silent (non-ticking) - Battery requirement: 1pc. AA type 1.5V battery (not included in the package). - Hands: plastic (L, XXL) / metal (XL) - black. Note, that the XXL size variant is not equipped with second hand. - Dimensions: diameter: L - 41cm / 16 in XL - 59cm / 23.5 in XXL - 98cm / 39 in depth: 3,3cm / 1.25 in weight: L - 0,35kg / 0.8 lb, XL - 0.8kg / 2 lbs. XXL - 1.7kg / 4.5 lbs - Production: 2-4 days - Shipping: ~1 week Please note: although this product ships for free certain countries above certain product value may still charge customs duty and/or tax (VAT). In this case this fee is collected by the carrier.