The MR Maximum Rigidity Speaker Stand gives audiophiles the performance they need. With a top-quality construction and 4 vertical risers, it's compatible with large and/or heavy stand-mount and bookshelf loudspeakers. Enjoy maximum rigidity and superior sound quality. Specifications Top Plate (LxWxD) 0.125" x 6.0" x 8.0" Base Plate (LxWxD) 0.250" x 9.0" x 11.0" Weight - MR50 31lbs Weight - MR60 35lbs Weight - MR70 39lbs Height - MR50 20" Height - MR60 24" Height - MR70 28" Speaker Weight Limit Up to 80lbs Each Without Deflection of the Top Plate Includes Risers Top and Bottom Plates Floor Spikes Top Plate Isolation Spikes and Pads Screws Assembly Instructions Recommended Accessories Custom Top Plate to Mount Bryston Mini T Speakers Stance Plates Bling Thing 2.0