Adjustable Mobile Base HTC2000 for Power Tools by HTC Rugged 500-lb capacity means your heaviest machines will glide out of your way Fully adjustable to fit almost any machine / tool. Expands from 12x12 inches to 36 x 36, and can go up to 20 x 52 - all in one-inch increments Foot lever lock-unlock for ease of use, and the four wheels are durable hard rubber, which adds to the stability Very low profile - increases machine height by less than 1 inch, meaning it won't interfere with operation Powder coated steel side rails and bottoms, plus Bora's superior craftsmanship, make this a rock solid base. Features a limited lifetime warranty For items that need a larger footprint the K1218 accessory rail kit is available. The kit includes 2 x 18in rails and 2 x 12in rails with necessary hardware" it will be 6 bullet points