Check the listing for details. AHEAD SPG-BBR3 Spinal Glide Drum Stool - Saddle. Condition: New. Listed at 415.51 USD. Due to the shared stool upper part, the coccyx has no contact with the seat. So it is not loaded and the spine is not pressed or compressed! The world's first ergokinetic drummer seat allows the mutual, three -dimensional movement of the pelvis without strain on the back and spine! The spinal Glide stool supports a more natural way of movement of the legs, the backbone and shoulders while sitting and playing drums! All of our items have a 30-day return policy without explanation. Notes, reading and software are excluded from the exchange. The General Terms and Conditions of Zoundhouse GmbH & Co. KG apply. 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: put them into your.