These are built out of rock-solid wood. They are not hollow inside. These can withstand a weight of 100 lbs. and they will be super sturdy without the need to add any sand inside of them. The design of them is also more premium with cool accents to really make your set-up look impressive. These stands are perfect for Bookshelf speakers, surround sound speakers and studio monitors! They will look great in your living room, family room, den, or studio. These will even support floors that are not level. Features: (2) Rockville SS28C Classic Wood Grain 28" Speaker Stands Fits iFi LS3.5 Premium stands are thicker and heavier and support up to 100 lbs. without the need to put sand inside of them (2) Pairs of Top Platforms for different size speakers Solid wood (these are not hollow) Made from thick high quality Rock-Solid MDF wood to minimize resonance Classic wood-grain finish looks amazing! Brass & Rubber spikes add stability to any floor surface Isolation pads create a no-slip surface as well as improve acoustical performance 100 lbs. load capacity allows you to use a heavier speaker without compromising stability. Stands Height: 28" Base plate size: 12.6" x 10.23" Top Platform size 1: 9.25"x7.28" (For smaller size speakers) Top Platform size 2: 9.25"x11.8" (For larger size speakers up to 8") Premium unique design Item weight per pair 26 lbs. Weight: 33 lbs. Color: Classic Wood-Grain Dimensions (Inches): 12.6" L x 10.23" W x 28" H