Professional rack stand with 6 tiers for 6 keyboards with casters. Made of anodized aluminum with durable joints reinforced with glass fiber, in black finish. All tiers are adjustable in height the 4 upper tiers with holders of 40 cm length are adjustable in depth too. Two casters are lockable. Two lower tiers are strengthened with a second tube and can be used for heavy instruments. The mounted holders are 60 cm and 50 cm long.