The XD series is a new form factor from Pedaltrain. Six rails. Novo spacing. Extra deep mounting surface. Stack pedals three deep? Can do. Add a switching system? No problem. Expression pedals? Of course! Dimensions: 18 in x 17.5 in x 3.5 in (45.72 cm x 44.45 cm x 8.9 cm) Weight: 3.6 lbs (1.63 kg) • MFSKU PT-XD18-SC • UPC 817709005072