Sheet music and concept holder for Spider Pro. This useful sheet music and concept holder attaches easily to the Spider Pro Models 18860 or 18840. The stable clamp with the ergonomic clamp lever allows a variable height adjustment. The angle is set using a mesh teeth joint, ensuring that it is securely in place. The distance and direction of the sheet music holder can be set using a clamping screw. The music desk is 296 mm high and 416 mm wide. The music desk can be removed separately with the sturdy K&M prismatic "V-block" connector. Dimensions: 416 x 296 x 30 mm. Weight: 2 kg. Colour: Black.