Combination Seat Slide & Swivel Spider Set

• Provides smooth fore and aft travel and 360° seat rotation. Wobble-free design
• Adds comfort and stability for any swivel boat seat
• Mounts underneath seat and on top of pedestal stanchion
• Compatible with any 2-7/8" diameter tube
• Convenient handles provide solid locking at any position
• Meets ABYC-H31, Type A seating standards as well as extensive Garelick performance standards