Check the listing for details. HERCULES KS-210B Keyboard Stand. Color: see description, Condition: New. Listed at 142.08 USD. The HERCULES HCKS-210B Double X keyboard stand offers an attachment for a second keyboard and the patented “EZ-LOCK” system, which automatically locks the tripod. The HCKS-210B also has a 4-way height adjustment and a robust steel construction. In addition, the adjustable rubber foot optimizes stability on uneven surfaces. All of our items have a 30-day return policy without explanation. Sheet music, reading material and software cannot be exchanged. The General Terms and Conditions of Zoundhouse GmbH & Co. KG apply. The European Union provides an online platform (OS platform) for the out-of-court settlement of consumer disputes: When purchasing multiple items: Add the items to your shopping cart and select “Request total from buyer” at the top right. If you intend to buy multiple items: p.